Question

The variation of volume V, with temperature T, keeping pressure constant is called the coefficient of thermal expansion (α) of a gas. i.e.,For an ideal gas α is equal to

(a) T

(b) 1/T

(c) p

(d) 1/p

Answer 1

Correct option (b) 1/T

Explanation:

For z ***** of an ideal gas PV = nRT

Differentiating with respect to T at constant P, we have