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

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

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Chemical Engineering Thermodynamics
The necessary and sufficient condition for equilibrium between two phases is

The concentration of each component should be same in the two phases
The pressure should be same in the two phases
The chemical potential of each component should be same in the two phases
The temperature of each phase should be same

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