A gas mixture consists of 3 moles of oxygen... | Kinetic Theory of Gases | JEE Main

JEE MAIN 2020

02-09-20 S1

Question

A gas mixture consists of 3 moles of oxygen and 5 moles of argon at temperature T. Assuming the gases to be ideal and the oxygen bond to be rigid, the total internal energy (in units of RT) of the mixture is

Select the correct option:

A

13

B

15

C

20

D

11

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

$E=3 \times \frac{5}{2} R T+5 \times \frac{3}{2} \times R T=15 R T$

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