Related Questions

In any spontaneous process, the __________ free energy decreases.
A Helmholtz
B Gibbs
C Both A & B
D Neither A nor B
For a spontaneous natural process at constant temperature and pressure, the free energy of the system always
A increases
B decreases
C remains constant
D increases to a maximum before decreasing
Chemical potential (an intensive property) of a substance is a force that drives the chemical system to equilibrium and is equal to its partial molar properties. The reatio of chemical potential to free energy of a pure substance at oconstant temperature and pressure is
A 0
B 1
C ∞
D None of these
The minimum energy required to allow a chemical reaction to proceed is termed as the 'threshold energy '. Chemical reaction with low activation energy are
A Always irreversible
B Insensitive to temperature changes
C Mostly irreversible
D Highly temperature sensitive
The entropy change for a spontaneous process is
A > 0 for the system
B > 0 for the system & the surrounding
A change in state involving a decrease in entropy can be spontaneous, only if
A It is exothermic
B It is isenthalpic
C It takes place isothermally
D It takes place at constant volume
Spontaneous change is one in which there is:
A A lowering of entropy
B A lowering of free energy
C Increase in free energy
D An increase in Internal energy
__________ law of thermodynamics ascertains the direction of a particular spontaneous process.
A Zeroth
B First
C Second
D Third
In any spontaneous process,
A Only F decreases
B Only A decreases
C Both F and A decreases
D Both F and A increase
The free energy change for a chemical reaction is given by (where, K = equilibrium constant)
A RT lnK
B -RT lnK
C -R lnK
D T lnK

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