Chemical Engineering Thermodynamics
Free energy changes for two reaction mechanism 'X' and 'Y are respectively - 15 and - 5 units. It implies that X is

Three times slower than Y
Slower than Y
Three times faster than Y
Faster than Y

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Chemical Engineering Thermodynamics
Gibbs-Duhem equation

Applies only to binary systems
Finds no application in gas-liquid equilibria involved in distillation
None of these
States that n₁dμ₁ + n₂dμ₂ + ....njdμj = 0, for a system of definite composition at constant temperature and pressure

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