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Kinetics
Equilibrium & Solubility
Electrochemistry
Thermochemistry
100
A catalyst increases the rate of a reaction by
What is decreasing the activation energy?
100
The rates of the forward and reverse reactions are equal at this
What is equilibrium?
100
Oxidation occurs at the
What is the anode?
100
When H is positive and S is negative, what is G?
What is positive?
200
Which of the following would NOT increase the rate of reaction. a. raising the temperature b. adding a catalyst c. increasing the concentration of reactants d. adding an inert gas
What is d - adding an inert gas?
200
SO2Cl2(g) <--> SO2(g)+ Cl2(g) If more SO2Cl2 were to be added to the reaction, in which direction would the reaction move?
What is to the right?
200
2. In which of the following molecules does hydrogen have an oxidation state of -1? a.H2O b.NH3 c.CaH2 d.CH4
What is C - CaH2?
200
A chemical reaction that absorbs heat from the surroundings is said to be __________ and has a __________ DH at constant pressure.
What is endothermic and positive?
300
The reaction A + B = products is found to be second order in [A] and first order in [B]. The rate equation would be: a. r = k[A][B] b. r = k[A]2[B] c. r = k[A][B]2 d. r = k[B]
What is b?
300
How is the reaction quotient used to determine whether a system is at equilibrium? a. The reaction is at equilibrium when Q < K. b. The reaction is at equilibrium when Q > K. c. The reaction quotient must be satisfied for equilibrium to be achieved. d. The reaction is at equilibrium when Q = K.
What is D?
300
The effect of a catalyst on equilibrium is to___________. a. increase the rate at which equilibrium is achieved without changing the composition of the equilibrium mixture b. increase the rate of the forward reaction only c. increase the equilibrium constant so that products are favored d. slow the reverse reaction only
What is A?
300
N2 (g) + 2O2 (g) ¬ 2NO2 (g) H = 66.4 kJ 2NO (g) + O2 (g) ¬ 2NO2 (g) H = -114.2 kJ Calculate the enthalpy of the reaction of the nitrogen to produce nitric oxide N2 (g) + O2 (g) ¬ 2NO (g)
What is 180.6 kJ or 0.1806 J?
400
The following initial rate-concentration data was collected for the reaction 2A + B + 2C = D + E + F. Initial Concentrations, M Initial Rate, M/s [A] [B] [C] D[D]/Dt 1.0 0.50 0.40 1.8x10-4 1.0 0.40 0.40 1.8x10-4 1.0 0.30 0.80 9.0x10-5 0.10 0.20 0.40 1.8x10-5 The rate equation for this reaction is
What is r = k[A][C]-1
400
The effect of a catalyst on equilibrium is to___________. a. increase the rate at which equilibrium is achieved without changing the composition of the equilibrium mixture b. increase the rate of the forward reaction only c. increase the equilibrium constant so that products are favored d. slow the reverse reaction only
What is A?
400
Which of the following is true about the oxidation-reduction reaction that takes place in a galvanic cell under standard conditions? a.G° and E° are positive, and Keq is greater than 1 b. G° is negative, E° is positive, and Keq is greater than 1 c. G° is positive, E° is negative, and Keq is less than 1 d.G° and E° are negative, and Keq is greater than 1
What is B?
400
1) A chemical reaction that absorbs heat from the surroundings is said to be __________ and has a __________ DH at constant pressure. a. endothermic, positive b. endothermic, negative c. exothermic, negative d. exothermic, positive
What is A - endothermic and positive?