In case of a solid or a liquid substance `C_(P,m)~~C_(V,m)`, but in case of gaseous substances `C_(P,m) gtC_(V,m)`. Explain.

Define C_P and C_V

In case of 1 mol of an ideal gas, write down the value of C_(v) - C_(p) .

Prove C_(p) - C_(v) = R

What is the value of C_(p)// C_(V) of noble gas ?

Modulus of rigidity is meaningful only in the case of a solid substances'-explain.

Give an example of volume expansion of a liquid on heating. The area of a solid substance at a temperature of T_1K is A_1 sq m and that at a temperature of T_2K is A_2 sq m.Write down the mathematical expression for the coefficient of area expansion-with unit, of that solid substance.

For an ideal gas C_(V,m)=12.47J*mol^(-1)*K^(-1) . What will be the value of C_(P,m) ?

In case of a spherical mirror show how magnification (m) depends on focal length (f) of the mirror and image distance (v).