System is said to be in thermodynamic equilibrium when it is in ......

• Mechanical equilibrium

• Thermal equilibrium

• Chemical equilibrium

• All above

................... remains constant during the adiabatic process

• Volume

• Temperature

• Entropy

• Density

All natural processes are

• Isothermal

• Adiabatic

• Reversible

• Irreversible

Heat engine convert heat into

• Light energy

• Mechanical energy

• Electrical energy

• Magnetic energy

Which of the following is reversible process

• Carnot Heat Engine

• free expansion of gas

• Heat conduction

• Rubbing of stones

The entropy of universe tending to

• Minimum

• Zero

• Maximum

• Constant

We apply statistics for

• a single particle problem

• for many particle problem

• for two particle problem

• for many dissimilar particles

Thermodynamic variables are

• G,F, T S

• G,F,U,H

• T, S , P, V, M

Thermodynamic potentials has the dimension of..

• Momentum

• Energy

• dimensionless

• Depends on the function used

What are thermodynamic potentials

• S, G, U,F

• S,T,G,F

• G,F,H,U

• H,S,U,F