Test
... A sample of solid NH4NO3 was placed in an evacuated container and then heated so that it decomposed explosively according to the following equation: NH4NO3(s) N2O(g) + 2H2O(g) At equilibrium the total pressure in the container was found to be 2.35 atm at a temperature of 500.°C. Calculate Kp. a) b) ...
... A sample of solid NH4NO3 was placed in an evacuated container and then heated so that it decomposed explosively according to the following equation: NH4NO3(s) N2O(g) + 2H2O(g) At equilibrium the total pressure in the container was found to be 2.35 atm at a temperature of 500.°C. Calculate Kp. a) b) ...
Reactions Homework Packet
... no reaction, write NO REACTION. For the following assume all compounds are aqueous (dissolved in water). ...
... no reaction, write NO REACTION. For the following assume all compounds are aqueous (dissolved in water). ...
chapter 9: aqueous solutions
... 2. write the formula of the compound followed by an arrow 3. balance using coefficients 4. add state symbols (state of pure substance on the left, ((s) usually), (aq) for ions on the right) Example 1: Solid Sodium carbonate dissolves in water ...
... 2. write the formula of the compound followed by an arrow 3. balance using coefficients 4. add state symbols (state of pure substance on the left, ((s) usually), (aq) for ions on the right) Example 1: Solid Sodium carbonate dissolves in water ...
Chemistry 12 - hrsbstaff.ednet.ns.ca
... 39. Assume that the following system has reached equilibrium in a closed container. Which of the following changes will produce a greater yield by shifting the equilibrium to the right? S8 (s) + 12 O2 (g) 8 SO3 (g) ΔH = -3166 kJ A. add a catalyst C. increase the temperature B. increase the pressure ...
... 39. Assume that the following system has reached equilibrium in a closed container. Which of the following changes will produce a greater yield by shifting the equilibrium to the right? S8 (s) + 12 O2 (g) 8 SO3 (g) ΔH = -3166 kJ A. add a catalyst C. increase the temperature B. increase the pressure ...
The bombardier beetle uses an explosive discharge as a defensive
... 2. A hot air balloon is being inflated to its full extent by heating the air inside it. In the final stages of this process, the volume of the balloon changes from 3.5 x 106 L to 4.50 x 106 L by the addition of 160 MJ of energy as heat. Assuming that the balloon expands against a constant pressure o ...
... 2. A hot air balloon is being inflated to its full extent by heating the air inside it. In the final stages of this process, the volume of the balloon changes from 3.5 x 106 L to 4.50 x 106 L by the addition of 160 MJ of energy as heat. Assuming that the balloon expands against a constant pressure o ...
Chemistry I Final Exam Review Problems 2016
... ____ 69. A gas occupies a volume of 2.4 L at 14.1 kPa. What volume will the gas occupy at 84.6 kPa? a. 497 L c. 14 L b. 2.5 L d. 0.40 L ____ 70. At a certain temperature and pressure, 0.20 mol of carbon dioxide has a volume of 3.1 L. A 3.1-L sample of hydrogen at the same temperature and pressure _ ...
... ____ 69. A gas occupies a volume of 2.4 L at 14.1 kPa. What volume will the gas occupy at 84.6 kPa? a. 497 L c. 14 L b. 2.5 L d. 0.40 L ____ 70. At a certain temperature and pressure, 0.20 mol of carbon dioxide has a volume of 3.1 L. A 3.1-L sample of hydrogen at the same temperature and pressure _ ...
chem16 part2 lect1 thermodynamics
... • In spontaneous changes the universe tends towards a state of greater disorder ∆Suniverse > 0 for a spontaneous process to occur. ∆Suniverse = ∆Ssystem + ∆Ssurroundings • Entropy changes for reactions can be determined similarly to ∆H for reactions. ∆S°298 = Σ nS°products - Σ nS°reactants ...
... • In spontaneous changes the universe tends towards a state of greater disorder ∆Suniverse > 0 for a spontaneous process to occur. ∆Suniverse = ∆Ssystem + ∆Ssurroundings • Entropy changes for reactions can be determined similarly to ∆H for reactions. ∆S°298 = Σ nS°products - Σ nS°reactants ...
File
... A. Atoms consist of electrons circling in definite orbits around a positive nucleus. B. Atoms are composed of electrons in a cloud around a positive nucleus. C. Atoms can easily be split, at which time they become radioactive. D. An atom’s mass is determined by the mass of its neutrons. 3. What is t ...
... A. Atoms consist of electrons circling in definite orbits around a positive nucleus. B. Atoms are composed of electrons in a cloud around a positive nucleus. C. Atoms can easily be split, at which time they become radioactive. D. An atom’s mass is determined by the mass of its neutrons. 3. What is t ...
3, 4, 7, 8, 10, 11, 13, 16, 17, 21, 22 Problems
... expressions for the following quantities in terms of N, k, T, L1 and L2: DS, DU, DH, DA, DG. S3.3 The normal boiling point of benzene is 80 oC = 353 K. The enthalpy of vaporization of benzene at its normal boiling point is DvapH = 35.7 kJ/mol. The constant pressure molar heat capacities of the liqui ...
... expressions for the following quantities in terms of N, k, T, L1 and L2: DS, DU, DH, DA, DG. S3.3 The normal boiling point of benzene is 80 oC = 353 K. The enthalpy of vaporization of benzene at its normal boiling point is DvapH = 35.7 kJ/mol. The constant pressure molar heat capacities of the liqui ...
IntroRedoxDCIAns
... b. Identify two characteristics common to these equations. The first three reactions show an element, in this case oxygen, converted to the combined form of oxygen in a compound. An element was converted to a compound in the reactions. In the fourth reaction, a compound decomposed into its elements. ...
... b. Identify two characteristics common to these equations. The first three reactions show an element, in this case oxygen, converted to the combined form of oxygen in a compound. An element was converted to a compound in the reactions. In the fourth reaction, a compound decomposed into its elements. ...
Introduction to Oxidation Reduction
... b. Identify two characteristics common to these equations. The first three reactions show an element, in this case oxygen, converted to the combined form of oxygen in a compound. An element was converted to a compound in the reactions. In the fourth reaction, a compound decomposed into its elements. ...
... b. Identify two characteristics common to these equations. The first three reactions show an element, in this case oxygen, converted to the combined form of oxygen in a compound. An element was converted to a compound in the reactions. In the fourth reaction, a compound decomposed into its elements. ...
Dissociation of a Diatomic Gas
... Let us consider the following simple model for a diatomic gas: a diatomic molecule consists of a pair of point-like atoms, each of mass m, separated by a rigid rod of length a. The rigid rod corresponds to the chemical bond, which requires an energy to break. Now, at any finite temperature T , we ...
... Let us consider the following simple model for a diatomic gas: a diatomic molecule consists of a pair of point-like atoms, each of mass m, separated by a rigid rod of length a. The rigid rod corresponds to the chemical bond, which requires an energy to break. Now, at any finite temperature T , we ...
Chemistry
... the exercises selected by your teacher provides necessary practice in recalling and using the essential ideas of the chapter. You cannot learn merely by observing; you must be a participant. In particular, try to resist checking the Student Solutions Manual (if you have one) until you have made a si ...
... the exercises selected by your teacher provides necessary practice in recalling and using the essential ideas of the chapter. You cannot learn merely by observing; you must be a participant. In particular, try to resist checking the Student Solutions Manual (if you have one) until you have made a si ...
Physical Science Semester 2 Final Exam 2013 –STUDY GUIDE
... the mass of the reactants? 49. A chemical reaction in which two or more substances combine to form another substance is called a ____. 50. According to the law of conservation of mass, if two atoms of hydrogen are used as a reactant, how many atoms of hydrogen must be part of the product? 51. What t ...
... the mass of the reactants? 49. A chemical reaction in which two or more substances combine to form another substance is called a ____. 50. According to the law of conservation of mass, if two atoms of hydrogen are used as a reactant, how many atoms of hydrogen must be part of the product? 51. What t ...
Chemical equilibrium
In a chemical reaction, chemical equilibrium is the state in which both reactants and products are present in concentrations which have no further tendency to change with time. Usually, this state results when the forward reaction proceeds at the same rate as the reverse reaction. The reaction rates of the forward and backward reactions are generally not zero, but equal. Thus, there are no net changes in the concentrations of the reactant(s) and product(s). Such a state is known as dynamic equilibrium.