Question 158: Thermodynamics & KTG

Question

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.

Accepted Answer

Statement 1 :
Total translational kinetic energy $$=\frac{3}{2} n \mathrm{RT}$$
where,
n = no. of moles
R = gas constant
T = Temperature
but, PV = nRT
$$	herefore$$ K.E. = 1.5 PV
Statement 2 : Molecules of a gas collide with each other and the velocities of the molecules change due to collision.
But statement 2 is not a correct explanation of statement 1 .

Answer

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

Answer

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

Answer

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

Answer

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

Thermodynamics & KTG

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.

Choose the correct answer: