Chemistry Homework Solutions
#38582
Gibbs free energy, equilibrium constant, partial pressure
Please explain the following:
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Consider the rxn:
ZrOH2=ZrOH+1/2H2 ; deltaGrxn nawt=4.32kj/mol ; delta Srxn nawt = 55.4 J/K mol at 300K.
What is the equilibrium constant for this reaction at 300 K?
the answer is 0.177
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Consider the reaction which has an equilibrium constant, Kp, of 870 at 298 K
H2(g) +I2(g) = 2 HI (g)
At 298 K, HI (g) is injected into an evacuated container. At equilibrium, the partial pressure of H2 is 0.103 atm. What's the partial pressure of HI at equilibrium, in atm?
the ans is 3.04
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Consider the rxn: A -> 2B +3C
1.000M of pure A is placed in a container at t=0. At t=10.0min [A]10=0.500M. At t=20.0min, [A]20= 0.250M. What is the rate of formation of C at t=30.0 min, in M/min?
ans: 2.60 x 10-2
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