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This quiz contains 10 questions from a mix of 1 subtopics.

Select the correct units for Kp for the following reaction:

CaCO3(s) ⇌ CaO(s) + CO2(g)

Pa2

Pa-2

Pa

Pa-1

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An equilibrium mixture for the following reaction contains 30 mol of N2, 40 mol of H2, and 90 mol of NH3.

N2(g) + 3H2(g) ⇌ 2NH3(g)

The total equilbrium pressure is 200 atm.

Select the correct value for Kp. 

2.7 x 10-3 atm-2

4.2 x 10-3 atm-2

1.5 x 10-2 atm-2

7.5 x 10-2 atm-2

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An equilibrium mixture for the following reaction contains 54 mol of A, 18 mol of B, and 48 mol of C.

A(g)  ⇌ B(g) + C(g)

The total equilbrium pressure is 150 kPa.

Calculate the value for Kp. 

20

kPa

kPa

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1

Calculate the value of Kp, to 2 significant figures, for the following equilibrum:

2SO2(g) + O2(g) ⇌ 2SO3(g)

The total equilibrium pressure was 240 kPa.

 The mole fractions are:                   

  • x(SO2) = 0.30
  • x(O2) = 0.10
  • x(SO3) = 0.60
0.17

kPa-1

kPa-1

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1

Calculate the value of Kp for the following equilibrum:

H2(g) + I2(g) ⇌ 2HI(g)

The partial pressures are:

  • p(H2) = 22 kPa
  • p(I2) = 22 kPa
  • p(HI) = 44 kPa
4

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The sum of mole fractions in a gas mixture equals .

1

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1

Select the most plausible units for Kp for the following reaction:

N2(g) + 3H2(g) ⇌ 2NH3(g)

kPa2

kPa-2

kPa

kPa-1

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1

The term used to describe the contribution that a gas makes towards the total pressure in a gas mixture is the pressure.

partial

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The term used to describe the proportion by volume of a gas in a gas mixture is called the mole .

fraction

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What is the equilibrium constant, Kp, for the following reaction:

N2(g) + 3H2(g) ⇌ 2NH3(g)?

Kp​=p(N2​)p(H2​)3p(NH3​)2​
Kp​=p(NH3​)2p(N2​)p(H2​)3​
Kp​=p(N2​)p(H2​)2p(NH3​)3​
Kp​=p(NH3​)3p(N2​)p(H2​)2​

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1