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Stella [2.4K]
3 years ago
7

What is the average kinetic energy of a gas at 285 kelvin? (R = 8.314 J/K-mol)

Chemistry
2 answers:
maxonik [38]3 years ago
6 0
The answer would be 3.55 x 10^3 j/mol
Svetllana [295]3 years ago
6 0

Answer:

The average KE = 312 J/mol

Explanation:

<u>Given:</u>

Temperature of the gas, T = 285 K

Gas constant, R = 8.314 J/K-mol

<u>To determine:</u>

The average kinetic energy of the gas

<u>Explanation:</u>

Based on the kinetic theory of gases, the average kinetic energy is given as:

KE = \frac{3}{2} RT\\

In this case:

KE = \frac{3}{2} *8.314\ J/K-mol * 285\ K = 312 J/mol

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