Grade 9 Academic Science
... 27. What is a pH indicator? What do they do? Give examples of 2 synthetic indicators and 1 natural indicator that you used in experiments in class. 28. In an acid-base neutralization reaction, what is produced? What type of reaction is this of the 5 we studied (see Q #18 if you need to be refreshed ...
... 27. What is a pH indicator? What do they do? Give examples of 2 synthetic indicators and 1 natural indicator that you used in experiments in class. 28. In an acid-base neutralization reaction, what is produced? What type of reaction is this of the 5 we studied (see Q #18 if you need to be refreshed ...
1 CHAPTER 17 CHEMICAL THERMODYNAMICS 17.1 Equilibrium
... However, we can increase any of these thermodynamical functions of a system without adding any heat to it or doing any work on it – merely by adding more matter. You will notice that, in the above statements, I referred to a “closed” thermodynamical system. By a “closed” system, I mean one in which ...
... However, we can increase any of these thermodynamical functions of a system without adding any heat to it or doing any work on it – merely by adding more matter. You will notice that, in the above statements, I referred to a “closed” thermodynamical system. By a “closed” system, I mean one in which ...
Chemistry: Matter and Change
... two, or three-letter symbol. • The periodic table organizes the elements into a grid of horizontal rows called periods and vertical columns called groups. ...
... two, or three-letter symbol. • The periodic table organizes the elements into a grid of horizontal rows called periods and vertical columns called groups. ...
On Free Energy and Internal Combustion Engine
... positive respectively. Step 4. Isothermal reversible reversal of the heat flow between reactor and the IHR in step 3. The final pressure is PM which is lower than PH . Temperature is still at TH . Net entropy change with respect to reactant at ( P1 , T1 ) = 0. (Step 3 + Step 4) = adiabatic and reve ...
... positive respectively. Step 4. Isothermal reversible reversal of the heat flow between reactor and the IHR in step 3. The final pressure is PM which is lower than PH . Temperature is still at TH . Net entropy change with respect to reactant at ( P1 , T1 ) = 0. (Step 3 + Step 4) = adiabatic and reve ...
11/16/2016- Matter Notes
... Properties of Matter Physical Properties -Any characteristic of a material you can observe that does not change the identity of the substance Physical Change -change in size, shape, or state in which its identity does NOT change EX. Ripping a piece of paper (just changes shape not chemical make up) ...
... Properties of Matter Physical Properties -Any characteristic of a material you can observe that does not change the identity of the substance Physical Change -change in size, shape, or state in which its identity does NOT change EX. Ripping a piece of paper (just changes shape not chemical make up) ...
NEET 2017 Syllabus PDF Here
... equation. Avogadro number, ideal gas equation. Kinetic energy and molecular speeds (elementary idea), deviation from ideal behaviour, liquefaction of gases, critical temperature. • Liquid State- Vapour pressure, viscosity and surface tension (qualitative idea only, no mathematical derivations). UNIT ...
... equation. Avogadro number, ideal gas equation. Kinetic energy and molecular speeds (elementary idea), deviation from ideal behaviour, liquefaction of gases, critical temperature. • Liquid State- Vapour pressure, viscosity and surface tension (qualitative idea only, no mathematical derivations). UNIT ...
NEET2017-Entrance Exam Syllabus
... Equilibrium of rigid bodies, rigid body rotation and equation of rotational motion, comparison of linear and rotational motions; moment of inertia, radius of gyration. Values of M.I. for simple geometrical objects (no derivation). Statement of parallel and perpendicular axes theorems and their appli ...
... Equilibrium of rigid bodies, rigid body rotation and equation of rotational motion, comparison of linear and rotational motions; moment of inertia, radius of gyration. Values of M.I. for simple geometrical objects (no derivation). Statement of parallel and perpendicular axes theorems and their appli ...
Document
... 15. The biological significance of chirality (stereoisomerism) is that A. because proteins (enzymes) are made of chiral subunits they usually react with only one stereoisomer of a molecule. B. because proteins (enzymes) are not made of chiral subunits they react with all stereoisomers of a molecule. ...
... 15. The biological significance of chirality (stereoisomerism) is that A. because proteins (enzymes) are made of chiral subunits they usually react with only one stereoisomer of a molecule. B. because proteins (enzymes) are not made of chiral subunits they react with all stereoisomers of a molecule. ...
Specific Reactions Quiz.wpd
... a) various carbon products created due to lack of oxygen including solid carbon (black component) b) as air contacts the random carbon products (smaller hydrocarbons) created, they may further combust c) since energy is still tied up in carbon product bonds, energy is not released all at once d) the ...
... a) various carbon products created due to lack of oxygen including solid carbon (black component) b) as air contacts the random carbon products (smaller hydrocarbons) created, they may further combust c) since energy is still tied up in carbon product bonds, energy is not released all at once d) the ...
Chemistry 12 – Unit 3 – Chapter 5 – Thermochemistry
... ∆H0reaction = Σ n∆H0f products - Σ n∆H0f reactants ∆H0rxn = [6 mol x ∆H0f of H2O(l) + 6 mol x ∆H0f of CO2(g)] – [2 mol x ∆H0f of C3H6(g) + 9 mol x ∆H0f of O2(g)] ∆H0rxn = [ 6 mol x(-285.8 kJ/mol) + 6 mol x (-393.5 kJ/mol) ] – [ 2 mol x (17.8 kJ/mol) + 9 mol x (0 kJ/mol)] ∆H0rxn = [ -1714.8 kJ + -236 ...
... ∆H0reaction = Σ n∆H0f products - Σ n∆H0f reactants ∆H0rxn = [6 mol x ∆H0f of H2O(l) + 6 mol x ∆H0f of CO2(g)] – [2 mol x ∆H0f of C3H6(g) + 9 mol x ∆H0f of O2(g)] ∆H0rxn = [ 6 mol x(-285.8 kJ/mol) + 6 mol x (-393.5 kJ/mol) ] – [ 2 mol x (17.8 kJ/mol) + 9 mol x (0 kJ/mol)] ∆H0rxn = [ -1714.8 kJ + -236 ...
Homochirality and the need of energy
... “homochiral objects” (like molecules, homochiral blocks within polymers, entire polymers, crystals, etc.) that have a cohesion. Thus, each object is enthalpically stabilized and can thereby overcome the entropic influence. On a large enough scale, the collection of objects will anyway still be globa ...
... “homochiral objects” (like molecules, homochiral blocks within polymers, entire polymers, crystals, etc.) that have a cohesion. Thus, each object is enthalpically stabilized and can thereby overcome the entropic influence. On a large enough scale, the collection of objects will anyway still be globa ...
Chemical Equations
... • First: the coefficients give the number of molecules (or atoms) involved in the reaction. • Second: the coefficients give the number of moles of each substance involved in the reaction. • The point just made is CRITICAL. • The coefficients of an equation tell us how many moles of each reactant ar ...
... • First: the coefficients give the number of molecules (or atoms) involved in the reaction. • Second: the coefficients give the number of moles of each substance involved in the reaction. • The point just made is CRITICAL. • The coefficients of an equation tell us how many moles of each reactant ar ...
Energy
... Since enthalpy is a state function (path independent) the change in enthalpy for the combination of the first two processes has to be the same as the change in enthalpy for the third process. This is a simple example of a general principle called Hess’ law. ...
... Since enthalpy is a state function (path independent) the change in enthalpy for the combination of the first two processes has to be the same as the change in enthalpy for the third process. This is a simple example of a general principle called Hess’ law. ...
Thermochemistry
... We can measure the ∆H by experiment for this reaction. We cannot measure directly the absolute heat contents of hydrogen, oxygen or water. But if we have defined the H of any free element (hydrogen and oxygen) to be zero then ∆H = H (2 moles of water) We see that the ∆H that we measure for this expe ...
... We can measure the ∆H by experiment for this reaction. We cannot measure directly the absolute heat contents of hydrogen, oxygen or water. But if we have defined the H of any free element (hydrogen and oxygen) to be zero then ∆H = H (2 moles of water) We see that the ∆H that we measure for this expe ...
Equilibrium Review True/False Indicate whether the statement is
... 3. (1 point) Explain why equilibrium will be unaffected if the pressure of the system below is tripled under constant temperature. H2(g) + I2(g) 2HI(g) 4. (1 point) Use the following information to answer the next question. Consider the following equilibrium reaction: 3O2(g) + 64 kcal 2O3(g) How ...
... 3. (1 point) Explain why equilibrium will be unaffected if the pressure of the system below is tripled under constant temperature. H2(g) + I2(g) 2HI(g) 4. (1 point) Use the following information to answer the next question. Consider the following equilibrium reaction: 3O2(g) + 64 kcal 2O3(g) How ...
Chemical thermodynamics
Chemical thermodynamics is the study of the interrelation of heat and work with chemical reactions or with physical changes of state within the confines of the laws of thermodynamics. Chemical thermodynamics involves not only laboratory measurements of various thermodynamic properties, but also the application of mathematical methods to the study of chemical questions and the spontaneity of processes.The structure of chemical thermodynamics is based on the first two laws of thermodynamics. Starting from the first and second laws of thermodynamics, four equations called the ""fundamental equations of Gibbs"" can be derived. From these four, a multitude of equations, relating the thermodynamic properties of the thermodynamic system can be derived using relatively simple mathematics. This outlines the mathematical framework of chemical thermodynamics.