In ideal gas is expanding such that PT² = constant. The coefficient of volume expansion of the gas is ______________.

(a)

\(\frac{1}{T}\)

(b)

\(\frac{2}{T}\)

(c)

\(\frac{3}{T}\)

(d)

\(\frac{4}{T}\)

Moving with uniform speed. The temperature of the gas molecules inside will _____________.

(a)

increase

(b)

decrease

(c)

remain the same

(d)

decrease for some, while increases for others.

During an adiabatic process, the pressure of a gas is found to be proportional to the cube of its absolute temperature the ratio \(\frac { { C }_{ p } }{ { C }_{ v } } \)for the gas is _____________.

(a)

\(\frac{4}{3}\)

(b)

2

(c)

\(\frac{5}{3}\)

(d)

\(\frac{3}{2}\)

The gas having average speed four times as that of SO₂ (molecule mass 64) is ____________.

(a)

He (molecule mass 64)

(b)

O₂ (molecule mass 4)

(c)

M₂ (molecule mass 32)

(d)

CH₄ (molecule mass 16)

The ratio of the vapour densities of two gases at a gn is 9 : 8. The ratio of the r_ms velocity of their molecules is ________________.

(a)

3: 2\(\sqrt{2}\)

(b)

2\(\sqrt{2}\):3

(c)

9:8

(d)

8:9