Question

Which of the following quantities are same for all ideal gases at the same temperature?

• A. The kinetic energy of $1mole$
• B. The kinetic energy of $1g$
• C. The number of molecules in $1mole$
• D. The number of molecules in $1g$

Answer 1

Answer: (A), (C)

The kinetic energy of $1mole$
The number of molecules in $1mole$

$K.E=\frac{3}{2}nRT$ where n is the number of moles.

(i) $1mole$ of a gas always contains $6.023\times {10}^{23}$ molecules.
(ii) Kinetic energy of ideal gases depends only on temperature.