A reaction is prepared by adding 1.37 mol each of H2, 12, and HI gases to a 1.0 L container. They are allowed to come to equilibrium, following the reaction: H2 (g) + I½(g) = 2HI(g) At the steady-state, 0.51 mol of HI remained in the container. What is the equilibrium constant Kc for this reaction under these conditions? 0.080 0.14 0.052 0.16

Chemistry: The Molecular Science
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Author:John W. Moore, Conrad L. Stanitski
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Chapter12: Chemical Equilibrium
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Problem 113QRT
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1a)
A reaction is prepared by adding 1.37 mol each of H2, 12, and HI gases to a 1.0 L
container. They are allowed to come to equilibrium, following the reaction:
H2 (g) + I2(g) = 2HI(g)
At the steady-state, O.51 mol of HI remained in the container. What is the
equilibrium constant Kc for this reaction under these conditions?
0.080
0.14
0.052
O 0.16
1b)
Which of the answers below correctly describes the effect of temperature on this
reaction?
2SO2(8) + O2(g) = 2S03(g)
AH = –198.4 kJ/mol
O At high temperature, more SO2 would be in the reaction container, because K
will decrease with increasing temperature
At high temperature, more SO2 would be in the reaction container, because heat
is a product
We cannot accurately answer this question without knowing K
At high temperature, more SO3 would be in the reaction container, because heat
is a reactant
At high temperature, more SO3 would be in the reaction container, because K
will increase with increasing temperature
Transcribed Image Text:1a) A reaction is prepared by adding 1.37 mol each of H2, 12, and HI gases to a 1.0 L container. They are allowed to come to equilibrium, following the reaction: H2 (g) + I2(g) = 2HI(g) At the steady-state, O.51 mol of HI remained in the container. What is the equilibrium constant Kc for this reaction under these conditions? 0.080 0.14 0.052 O 0.16 1b) Which of the answers below correctly describes the effect of temperature on this reaction? 2SO2(8) + O2(g) = 2S03(g) AH = –198.4 kJ/mol O At high temperature, more SO2 would be in the reaction container, because K will decrease with increasing temperature At high temperature, more SO2 would be in the reaction container, because heat is a product We cannot accurately answer this question without knowing K At high temperature, more SO3 would be in the reaction container, because heat is a reactant At high temperature, more SO3 would be in the reaction container, because K will increase with increasing temperature
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