16. Chemical Equilibrium

Kp and Kc

Multiple Choice
In which of the following reactions will K_c = K_p?
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Multiple Choice
For which of the following chemical equations would the value of K_p equal K_c(RT)? (Note: K_c is sometimes called K.)
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Multiple Choice
For which of the following chemical equations would the value of K_c equal K_p at a given temperature?
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Multiple Choice
Which of the following reactions has K_p equal to K_c at all temperatures?
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Multiple Choice
For the reaction 2 SO2(g) + O2(g) ⇌ 2 SO3(g), what is the value of Δn (the change in moles of gas) used when relating Kc to Kp?
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Multiple Choice
Partial pressures of the following equilibrium mixture at 955 K are: 130 torr methane, 92 torr hydrogen sulfide, 167 torr hydrogen gas and 532 torr carbon disulfide. What is the value of Kc at 955 K?
CH4(g) + 2 H2S(g) ⇌ 4 H2(g) + CS2(g)
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Multiple Choice
Consider the hypothetical reaction: ? X(g) + 3 Y(g) ⇌ 3 Z(g), where K_p = 1.16 x 10^–3 and K_c = 1.3 at 135°C. Find the value of the coefficient of X.
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Multiple Choice
For which reaction(s) will K_p = K_c?
a) N₂(g) + O₂(g) ⇌ 2 NO(g)
b) CaCO₃(s) ⇌ CaO(s) + CO₂(g)
c) 2 CH₄(g) ⇌ C₂H₂(g) + 3 H₂(g)
d) H₂O(g) + CO(g) ⇌ H₂(g) + CO₂(g)
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Multiple Choice
Select the correct choice below for the reaction: PCl₅(g) ⇌ PCl₃(g) + Cl₂(g)
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Multiple Choice
Which of the following reactions is a case where Kp equals Kc?
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