Question

# A monatomic gas and a diatomic gas both have n moles and are at temperature T. What is the difference in their internal energies? Express your answer in n, R, and T.

Solution

Verified
Step 1
1 of 2

Monatomic Gas: The average kinetic energy per molecule multiplied by the total number of molecules equals the internal energy of n moles of an ideal monatomic gas with one atom per molecule. A monatomic gas's particles do not vibrate or rotate. The total kinetic energy of all the molecules equals the gas's internal energy. It can be expressed mathematically as,

• $U=\dfrac{3}{2}nRT$

## Recommended textbook solutions

#### Physics for Scientists and Engineers: A Strategic Approach with Modern Physics

4th EditionISBN: 9780133942651 (5 more)Randall D. Knight
3,508 solutions

#### College Physics

7th EditionISBN: 9780321601834Bo Lou, Buffa, Jerry D. Wilson
3,249 solutions

#### Mathematical Methods in the Physical Sciences

3rd EditionISBN: 9780471198260Mary L. Boas
3,355 solutions

#### Fundamentals of Physics

10th EditionISBN: 9781118230718David Halliday, Jearl Walker, Robert Resnick
8,950 solutions