Consider the following reaction: I2(8) + Brz(g) 2 IBr(g) K - 1.2 x 102 (at 423 K) A reaction mixture initially contains 0.0010 mol of I2 and 0.0010 mol of Brz in a 5.0 L vessel. Which of the following is true? O The value of K, = Kp and the value of Ke and Kp will both increase with an increase in temperature. Two or more of these choices are correct. None of these choices are correcet. The 5% approximation and an ICE table can be used to solve for the equilibrium concentrations of the reactants and product. The value of K, and K, will both decrease with an increase in temperature. O The violet color of I,(g) will not disappear regardless of how much Br>(g) is added after equilibrium is reached.

Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter12: Gaseous Chemical Equilibrium
Section: Chapter Questions
Problem 54QAP: Consider the following hypothetical reaction: X2(g)+R(s)X2R(g) R has a molar mass of 73 g/mol. When...
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Consider the following reaction:
Br2(g)
2 IBr(g)
К.- 1.2х 10? (at 42з к)
A reaction mixture initially contains 0.0010 mol of I2 and 0.0010 mol of Br, in a 5.0L vessel. Which of the following is true?
The value of K, = Kp and the value of K, and K, will both increase with an increase in temperature.
Two or more of these choices are correct.
None of these choices are correct.
The 5% approximation and an ICE table can be used to solve for the equilibrium concentrations of the reactants and product.
The value of K, and Kp will both decrease with an increase in temperature.
The violet color of I,(g) will not disappear regardless of how much Bry(g) is added after equilibrium is reached.
The rate law for this reaction was determined to be third order overall.
2 Hzlg)
2 NOg! - Nylg! + 2 H,Olg)
Which of the following is true as pertains to the following proposed mechanism?
k1
2 NO
Fast equilibrium
k-1
N,O2 + H2 - Nyo + HO
Slow
N20 + H2 - N2 + H20
Fast
This is a valid three step mechanism and the rate = k[H,]°NOJ.
More than one of these choices are correct or none of these choices are correct.
This is a valid two step mechanisem and the rate -k(N202][H2).
The overall crder of the mechanism is sctually second order overall and not third order as was stated by mistake in the problem which is based on the first step being a fast equilibrium.
The arder of the elementary steps is related to the reactants coefficients.
A reaction has the proposed three step mechanism given below. Which of the fallawing is truc for the averall rcaction where 40 kcJ of heat flows to the surroundings and where ti
difference in energy between the products and the first transition state is 60. kJ?
k1
2 NO
Fast equilibrium
k-1
N,O2 + Hz - NO + H20
Slow
N20 +
H2
N2
+ H,0
Fast
The energy of activation for the rate determining step is 60. kJ.
N0, and N0 are intermediates and a catalyst is present.
Two or more of these choices are correct.
There are three transitions states present in the reaction energy diagram.
The energy of activation for the rate determining step is 100. kJ.
The second step has the lawest Ea-
Which of the following is true?
If two different reactions have two different E, and are carried out at the same temperature then the reaction with the higher concentration of reactants will have a larger rate constant.
More than one of these choices are comect.
If two different reactions have two different E, and are carried out at different temperatures then the reaction with the smaller Ea will have a larger rate constant.
If two different reactions have the same E, and are carried out at the same temperature then the reaction with the less symmetrical reactants will have a larger rate constant.
A
A decrease in temperature can aise E, of a reaction and this will cause less molecules that collide with the right arientation to have effective collisions.
Nane of these choices are correct.
please answer all, guaranteed thumbs up!!!
$ %0 0 000 o
o 000 0 0
Transcribed Image Text:Consider the following reaction: Br2(g) 2 IBr(g) К.- 1.2х 10? (at 42з к) A reaction mixture initially contains 0.0010 mol of I2 and 0.0010 mol of Br, in a 5.0L vessel. Which of the following is true? The value of K, = Kp and the value of K, and K, will both increase with an increase in temperature. Two or more of these choices are correct. None of these choices are correct. The 5% approximation and an ICE table can be used to solve for the equilibrium concentrations of the reactants and product. The value of K, and Kp will both decrease with an increase in temperature. The violet color of I,(g) will not disappear regardless of how much Bry(g) is added after equilibrium is reached. The rate law for this reaction was determined to be third order overall. 2 Hzlg) 2 NOg! - Nylg! + 2 H,Olg) Which of the following is true as pertains to the following proposed mechanism? k1 2 NO Fast equilibrium k-1 N,O2 + H2 - Nyo + HO Slow N20 + H2 - N2 + H20 Fast This is a valid three step mechanism and the rate = k[H,]°NOJ. More than one of these choices are correct or none of these choices are correct. This is a valid two step mechanisem and the rate -k(N202][H2). The overall crder of the mechanism is sctually second order overall and not third order as was stated by mistake in the problem which is based on the first step being a fast equilibrium. The arder of the elementary steps is related to the reactants coefficients. A reaction has the proposed three step mechanism given below. Which of the fallawing is truc for the averall rcaction where 40 kcJ of heat flows to the surroundings and where ti difference in energy between the products and the first transition state is 60. kJ? k1 2 NO Fast equilibrium k-1 N,O2 + Hz - NO + H20 Slow N20 + H2 N2 + H,0 Fast The energy of activation for the rate determining step is 60. kJ. N0, and N0 are intermediates and a catalyst is present. Two or more of these choices are correct. There are three transitions states present in the reaction energy diagram. The energy of activation for the rate determining step is 100. kJ. The second step has the lawest Ea- Which of the following is true? If two different reactions have two different E, and are carried out at the same temperature then the reaction with the higher concentration of reactants will have a larger rate constant. More than one of these choices are comect. If two different reactions have two different E, and are carried out at different temperatures then the reaction with the smaller Ea will have a larger rate constant. If two different reactions have the same E, and are carried out at the same temperature then the reaction with the less symmetrical reactants will have a larger rate constant. A A decrease in temperature can aise E, of a reaction and this will cause less molecules that collide with the right arientation to have effective collisions. Nane of these choices are correct. please answer all, guaranteed thumbs up!!! $ %0 0 000 o o 000 0 0
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