Assertion:Spontaneous process is an irreversible process and may be reversed by some external agency.
Reason:Decrease in enthalpy is a conrtributory factor for spontaneity.

Assertion (A): Spontaneous process is an irreversible process and may be reversed by external agency Reason (R): Decrease in enthalpy is a contributory factor for spontaneity.

Assertion (A). Spontaneous process is an irreversible process and may be reversed by some external agency. Reason (R). Decrease in enthalpy is a contributory factor for spontaneity

Assertion (A). Spontaneous process is an irreversible process and may be reversed by some external agency. Reason (R). Decrease in enthalpy is a contributory factor for spontaneity

A spontaneous process is an irreversible process and may only by reserved by some external agency. a) Decrese in enthalpy is the only criterion for spontaneity. Do you agree? Why? b) Calculate the work done for the reversible isothermal expansion of 1 mole of an ideal gas at 27^oC , from a volume of 10 dm^3 to a volume of 20 dm^3.

For spontaneous process:

For spontaneous process—