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Q.

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. Because
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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a

Statement-1 is True, Statement-2 is False

b

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

c

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

d

Statement-2 is False, Statement-2 is True

answer is B.

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Detailed Solution

detailed_solution_thumbnail

In an ideal gas, all molecules moving randomly in all direction collide elastically and their velocity changes after collision.

Total translational kinetic energy:

KT=32nRT=32PV=1.5 PV

Both statements are true, but statement-2 is NOT a correct explanation for Statement-1.

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