Equilibrium Constant - Faculty Server Contact
... Activity coefficient (g): measure of how a specific real system deviates from some reference system that is taken to be ideal. In an ideal solution, activity would equal concentration. The departure from ideal behavior is caused mainly by: •Electrostatic interactions between charged ions. •The form ...
... Activity coefficient (g): measure of how a specific real system deviates from some reference system that is taken to be ideal. In an ideal solution, activity would equal concentration. The departure from ideal behavior is caused mainly by: •Electrostatic interactions between charged ions. •The form ...
1 ChE 505 WORKSHOP 1 1. Why are chemical reactions important
... What is the relationship between the initial moles of reactants and products, the moles for each of the above after some reaction time, the stoichiometric coefficients and reaction extent? ...
... What is the relationship between the initial moles of reactants and products, the moles for each of the above after some reaction time, the stoichiometric coefficients and reaction extent? ...
Advanced Placement Chemistry: 1984 Free Response Questions
... (a) Give the rate law for this reaction from the data above (b) Calculate the specific rate constant for this reaction and specify its units. (c) How long must the reaction proceed to produce a concentration of Z equal to 0.20 molar, if the initial reaction concentrations are [X]o = 0.80 molar, [Y]o ...
... (a) Give the rate law for this reaction from the data above (b) Calculate the specific rate constant for this reaction and specify its units. (c) How long must the reaction proceed to produce a concentration of Z equal to 0.20 molar, if the initial reaction concentrations are [X]o = 0.80 molar, [Y]o ...
material safety data sheet
... Skin: None expected from product in normal solid form. Thermal burns will result from contact with molten material. Ingestion: Ingestion of solid material may cause gastric distress, stomach pains, vomiting and diarrhea. Contact with molten material will cause severe thermal burns to mouth and trach ...
... Skin: None expected from product in normal solid form. Thermal burns will result from contact with molten material. Ingestion: Ingestion of solid material may cause gastric distress, stomach pains, vomiting and diarrhea. Contact with molten material will cause severe thermal burns to mouth and trach ...
Physical and Chemical Changes
... material that can be observed or measured without changing the composition (make up) of the substances in the material. Seven examples of Physical Properties ...
... material that can be observed or measured without changing the composition (make up) of the substances in the material. Seven examples of Physical Properties ...
Chemical Equilibrium
... In general, for a particular reaction the value of Kp will be different from Kc ...
... In general, for a particular reaction the value of Kp will be different from Kc ...
PPT
... Define a “system” (often can be chosen for convenience) – A portion of matter, whose study focuses on its properties, interaction and evolution, from a thermodynamic point of view. “That part of the universe under consideration” (Wikipedia) All the material environment which may eventually interact ...
... Define a “system” (often can be chosen for convenience) – A portion of matter, whose study focuses on its properties, interaction and evolution, from a thermodynamic point of view. “That part of the universe under consideration” (Wikipedia) All the material environment which may eventually interact ...
Dr. Baxley`s Equilibrium Worksheet
... 2 NH3 (g) ⇌ N2 (g) + 3 H2 (g) At 450.˚C, Kc = 6.30. An unknown quantity of NH3 is placed in a reaction flask (with no N2 or H2) and is allowed to come to equilibrium at 450. °C. The equilibrium concentration of H2 is then determined to be 0.342 M. Determine the initial concentration of NH3 placed in ...
... 2 NH3 (g) ⇌ N2 (g) + 3 H2 (g) At 450.˚C, Kc = 6.30. An unknown quantity of NH3 is placed in a reaction flask (with no N2 or H2) and is allowed to come to equilibrium at 450. °C. The equilibrium concentration of H2 is then determined to be 0.342 M. Determine the initial concentration of NH3 placed in ...
Lecture 2-Extraction of Elements
... • If materials melt / vaporize, the slope changes • When the curve crosses ∆Go = 0, decomposition of oxide begins (Ag, Au, Hg) • Electropositive metal curves are at the bottom of the diagram • Any metal will reduce the oxide of other metal which is above in Ellingham diagram (the ∆Go will become mor ...
... • If materials melt / vaporize, the slope changes • When the curve crosses ∆Go = 0, decomposition of oxide begins (Ag, Au, Hg) • Electropositive metal curves are at the bottom of the diagram • Any metal will reduce the oxide of other metal which is above in Ellingham diagram (the ∆Go will become mor ...
Test review
... 11a. increase, shift left 11b. increase, shift left 11c no change 11d. increase, shift left 11e. decrease, shift right 12. 2 x 103 molecules/cm3 13. FeSCN2+ = 2.0 M, Fe3+ and SCN- = 0.043 M 14. 134 atm-1 15. 2.1 x 10-3 atm 16. PP4 = 0.73 atm, PP2 = 0.270 atm, 16% P4 is dissociated 17. PNO2 = .71 atm ...
... 11a. increase, shift left 11b. increase, shift left 11c no change 11d. increase, shift left 11e. decrease, shift right 12. 2 x 103 molecules/cm3 13. FeSCN2+ = 2.0 M, Fe3+ and SCN- = 0.043 M 14. 134 atm-1 15. 2.1 x 10-3 atm 16. PP4 = 0.73 atm, PP2 = 0.270 atm, 16% P4 is dissociated 17. PNO2 = .71 atm ...
2014
... PCl5 (g) ⇆ PCl3 (g) + Cl2 (g) PCl5 (g) decomposes into PCl3 (g) and Cl2 (g) according to the equation above. A sample of PCl5 (g) is placed into a rigid, evacuated 1.00 L container. The initial pressure of the PCl5 (g) is 1.00 atm. The temperature is held constant until the PCl5 (g) reaches equilibr ...
... PCl5 (g) ⇆ PCl3 (g) + Cl2 (g) PCl5 (g) decomposes into PCl3 (g) and Cl2 (g) according to the equation above. A sample of PCl5 (g) is placed into a rigid, evacuated 1.00 L container. The initial pressure of the PCl5 (g) is 1.00 atm. The temperature is held constant until the PCl5 (g) reaches equilibr ...
I Examen I Trim Science
... Matter is made up of tiny particles called atoms and molecules. These particles are always in motion and are always bumping into one another. The way the particles interact with each other helps determine the state of the matter. ...
... Matter is made up of tiny particles called atoms and molecules. These particles are always in motion and are always bumping into one another. The way the particles interact with each other helps determine the state of the matter. ...
CHEM 2: Exam 3
... that contain an UNPAIRED electron. Free radicals react quickly and attack molecules within the cell, such as DNA, changing them and causing cancer or other diseases. Circle ALL of the molecules or ions below that would LIKELY exist as free radicals. Use concepts and terms from Lewis theory to EXPLAI ...
... that contain an UNPAIRED electron. Free radicals react quickly and attack molecules within the cell, such as DNA, changing them and causing cancer or other diseases. Circle ALL of the molecules or ions below that would LIKELY exist as free radicals. Use concepts and terms from Lewis theory to EXPLAI ...
CHEM 2: Exam 3
... that contain an UNPAIRED electron. Free radicals react quickly and attack molecules within the cell, such as DNA, changing them and causing cancer or other diseases. Circle ALL of the molecules or ions below that would LIKELY exist as free radicals. Use concepts and terms from Lewis theory to EXPLAI ...
... that contain an UNPAIRED electron. Free radicals react quickly and attack molecules within the cell, such as DNA, changing them and causing cancer or other diseases. Circle ALL of the molecules or ions below that would LIKELY exist as free radicals. Use concepts and terms from Lewis theory to EXPLAI ...
South Pasadena • AP Chemistry
... 5. What three things must be taken into account when determining if a reaction has enough energy to overcome the activation energy (Ea)? 6. What does a catalyst do to a reaction? Explain. Something that is added to a reaction to speed up the reaction – it lowers the activation energy (energy necessa ...
... 5. What three things must be taken into account when determining if a reaction has enough energy to overcome the activation energy (Ea)? 6. What does a catalyst do to a reaction? Explain. Something that is added to a reaction to speed up the reaction – it lowers the activation energy (energy necessa ...
Spontaneity, Entropy, and Gibbs Free Energy
... Processes that are spontaneous at one temperature may be nonspontaneous at other temperatures Above 0°C, it IS spontaneous for ice to melt Below 0°C, the reverse process is spontaneous (liquid water freezing) ...
... Processes that are spontaneous at one temperature may be nonspontaneous at other temperatures Above 0°C, it IS spontaneous for ice to melt Below 0°C, the reverse process is spontaneous (liquid water freezing) ...
Name - cloudfront.net
... Thermochemistry 43. What would likely happen (how would it feel) if you were to touch the flask in which an endothermic reaction were occurring? 44. Standard conditions of temperature and pressure for a thermochemical equation are __ and __kPa. 45. If heat is released by a chemical system, an equal ...
... Thermochemistry 43. What would likely happen (how would it feel) if you were to touch the flask in which an endothermic reaction were occurring? 44. Standard conditions of temperature and pressure for a thermochemical equation are __ and __kPa. 45. If heat is released by a chemical system, an equal ...
Chemical Equilibrium Stress? What stress? 1
... There is a principle that can be studied to govern changes in equilibrium (Le Chatelier’s Principle). Le Chatelier’s Principle states: “If a stress is applied to a system in dynamic equilibrium, the system changes to relieve the stress.” Stresses are changes in temperature, pressure, concent ...
... There is a principle that can be studied to govern changes in equilibrium (Le Chatelier’s Principle). Le Chatelier’s Principle states: “If a stress is applied to a system in dynamic equilibrium, the system changes to relieve the stress.” Stresses are changes in temperature, pressure, concent ...
Physical Science
... formation, or smell • Can occur very slowly such as the formation of rust. • Can be used to separate substances such as metals from their ores. ...
... formation, or smell • Can occur very slowly such as the formation of rust. • Can be used to separate substances such as metals from their ores. ...
Advanced Placement Chemistry Test
... (f) At 1000 K, the value of Kc for the reaction is 2.6 x 10-2. In an experiment, 0.75 mole of HI(g), 0.10 mole of H2(g), and 0.50 mole of I2(g) are placed in a 1.0 L container and allowed to reach equilibrium at 1000 K. Determine whether the equilibrium concentration of HI(g) will be greater than, e ...
... (f) At 1000 K, the value of Kc for the reaction is 2.6 x 10-2. In an experiment, 0.75 mole of HI(g), 0.10 mole of H2(g), and 0.50 mole of I2(g) are placed in a 1.0 L container and allowed to reach equilibrium at 1000 K. Determine whether the equilibrium concentration of HI(g) will be greater than, e ...
Chem 480A
... (There is an interesting problem in going from Equation 5a to Equation 5b which is not usually discussed. In Equation 5a the coefficients of the balanced chemical equation, a, b, etc. have units of moles, so that, for example, cC is moles times Joules per mole which leaves just units of Joules. How ...
... (There is an interesting problem in going from Equation 5a to Equation 5b which is not usually discussed. In Equation 5a the coefficients of the balanced chemical equation, a, b, etc. have units of moles, so that, for example, cC is moles times Joules per mole which leaves just units of Joules. How ...
Alcohol responsive 2D coordination network of 3
... Decomposition of the guest-free compound occurs above 380 C. The DSC shows two endotherms at 135 and 230 C which corresponds to successive release of water and DMF molecules from the host channels. The DSC analysis also displays an exotherm after complete loss of guest molecules at approximately ...
... Decomposition of the guest-free compound occurs above 380 C. The DSC shows two endotherms at 135 and 230 C which corresponds to successive release of water and DMF molecules from the host channels. The DSC analysis also displays an exotherm after complete loss of guest molecules at approximately ...