Practice Relationship Between Kc And Kp (6.2.3)

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6 sample questions

Question 1.
What does Kc stand for?
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Think about concentration units in chemical reactions.
Question 2.
What is the value of R in the Kp equation?
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Consider the gas law and constants.
3Question 3.
What does Kp depend on?
- Concentrations only
- Partial pressures only
- Both concentrations and partial pressures
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Think about the type of equilibrium constant we are discussing.
4Question 4.
True or False: Kc and Kp are always equal.
- True
- False
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Consider the conditions under which Kc and Kp apply.
Question 5.
Given that Kc = 3.5 for the reaction A(g) ⇌ B(g) + C(g), calculate Kp at 298 K. Assume R = 0.0821 L atm/K·mol and Δn_gas = 1.
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Be sure to follow the Kp formula carefully.
Question 6.
For the reaction 2D(g) ⇌ E(g) + F(g) where Kc = 0.04 and Δn_gas = -1 at 298 K, find Kp.
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Pay attention to the negative exponent for Δn_gas.

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