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Equilibrium
Question
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In which of the following equilibrium Kc and Kp are not equal?

  • 2NO (g) ⇌ N2 (g)  + O2 (g)

  • SO2 (g) + NO2 (g) ⇌ SO3 (g) + NO (g)

  • H2 (g) + I2 (g) ⇌ 2 HI (g)

  • 2C (s) + O2 (g) ⇌ 2CO2 (g)

Answer

D.

2C (s) + O2 (g) ⇌ 2CO2 (g)

The reaction for which the number of moles of gaseous products (np) is not equal to the number of moles of gaseous reactants (nR), has a different value of Kc and Kp.
a) np = nR = 2 thus, Kp = Kc
b) np = nR = 2 thus, Kp = Kc
c) np = nR = 2 thus, Kp = Kc
d) np = 2, nR = 1 thus, Kp not equal to Kc

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Some More Questions From Equilibrium Chapter

What kind of molecules in a liquid can evaporate?

Name the factors on which vapour pressure of any liquid depends.

Which measurable property becomes constant in water vapour equilibrium?

Give an example from daily life in which there is gas solution equilibrium?

A crystal of common salt of a given mass is kept in its aqueous solution. After 24 hours, its mass remains the same. Is the crystal in equilibrium with the solution?

What is the role of forward and backward reactions at equilibrium of a reversible reaction?