1) Consider the following reaction: C O ( g ) + 2 H 2 ( g ) ? C H 3 O H ( g ) An
ID: 791713 • Letter: 1
Question
1) Consider the following reaction:
CO(g)+2H2(g)?CH3OH(g)
An equilibrium mixture of this reaction at a certain temperature was found to have [CO]= 0.110M , [H2]= 0.116M , and [CH3OH]= 0.190M .
What is the value of the equilibrium constant (Kc) at this temperature?
2) Consider the following reaction:
NH4HS(s)?NH3(g)+H2S(g)
An equilibrium mixture of this reaction at a certain temperature was found to have [NH3]= 0.270M and [H2S]= 0.360M .
What is the value of the equilibrium constant (Kc) at this temperature?
Explanation / Answer
(1) CO(g) + 2 H2(g) <=> CH3OH(g)
Kc = [CH3OH]/[H2]^2[CO]
= 0.190/(0.116^2 x 0.110)
= 128 (or 1.28 x 10^2)
(2) NH4HS(s) <=> NH3(g) + H2S(g)
Kc = [NH3][H2S]
= 0.270 x 0.360
= 0.0972 (or 9.72 x 10^(-2))
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.