Q1 / 46 · NTA Abhyas (NEET) 2020 · Physics · Kinetic Theory of Gases

The total kinetic energy of a mixture of $4 g$ of $H_{2}$ and $4 g$ of He at $300 K$ is

A
$1800 R$
B
$1750 R$
Correct answer
C
$1950 R$
D
$2500 R$

Solution

U = \frac{5}{2} \times \frac{4}{2} R \times 300 + \frac{3}{2} \times \frac{4}{4} R \times 300

= (5 R + \frac{3}{2} R) \times 300 = \frac{13 R}{2} \times 300 = 1950 R

Hence, the correct answer is option: 'C'.

More Kinetic Theory of Gases Questions

The rms speed of oxygen at room temperature is about 500 m s - 1 . The rms speed of hydrogen at the same temperature is about
A bubble is at the bottom of the lake of depth h . As the bubble comes to surface, its radius increases three times. If atmospheric pressure
One mole of a monoatomic ideal gas is mixed with one mole of a diatomic ideal gas. The molar specific heat of the mixture at constant volume
Root mean square speed of an ideal gas at 300 K is 500 m / s . Temperature is increased four times then root mean square speed will become
For the same rise in temperature of one mole of gas at constant volume, the heat required for a non-linear triatomic gas is K times that req
A gas mixture consist of 2 m o l e s of Oxygen and 4 m o l e s of Argon at temperature T . Neglecting all vibrational modes, the total inter