Question

Choose the wrong options

• A. Translation kinetic energy of all ideal gases at same temperature is same
• B. In one degree of freedom all ideal gases has internal energy = $\frac{1}{2}RT$
• C. Translational degree of freedom of all ideal gases is three
• D. Translational kinetic energy of one mole of all ideal gases is $\frac{3}{2}RT$

Answer 1

Answer: (A), (B)

The correct options are
A Translation kinetic energy of all ideal gases at same temperature is same
B In one degree of freedom all ideal gases has internal energy = $\frac{1}{2}RT$

Translational kinetic energy of an ideal gas in one degree of freedom is $\frac{1}{2}nRT$, where $n$ is the number of moles of ideal gas.

Translational kinetic energy of an ideal gas in three degrees of freedom is $\frac{3}{2}nRT$,. Thus gases at same temperature may have different kinetic energies if the moles of the gases are different.