STATEMENT-1:
The total translational kinetic energy of all the molecules of a given mass of an ideal gas is 1.5 times the product of its pressure and its volume
STATEMENT-2:
The molecules of a gas collide with each other and the velocities of the molecules change due to the collision.

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Statement-1 is True; Statement-2 is True; Statement-2 is a
correct explanation for Statement-1

Statement-1 is True; Statement-2 is True; Statement-2 is
NOT a correct explanation for Statement-1

Statement-1 is True, Statement-2 is False

Statement-1 is False; Statement-2 is True.

answer is B.

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Detailed Solution

The total translational kinetic energy of all the molecules of a gas is given as
$E = \frac{3}{2} n R T = \frac{3}{2} P V$
Thus statement-1 is correct .In a gas ,molecule are in Brownian motion and travel randomly in all directions and at every collision direction of motion changes so velocity changes .Thus statement -1 and 2 are true but statement-2 is not explanation for statement-1.

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