Chemical Engineering Thermodynamics
Which of the following is not a unit of the equilibrium constant Kp? (where, Δx = number of moles of products number of moles of reactants)

(atm)Δx, when Δx is negative
Dimensionless, when Δx = 0
(atm)Δx, when Δx is positive
(atm)Δx2, when Δx > 0

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Chemical Engineering Thermodynamics
If the heat of solution of an ideal gas in a liquid is negative, then its solubility at a given partial pressure varies with the temperature as

Solubility increases or decreases with temperature depending on the Gibbs free energy change of solution
Solubility increases as temperature increases
Solubility is independent of temperature
Solubility increases as temperature decreases

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