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Q.

Calculate the kinetic energy of one mole of argon at 127oC. 

Given, Boltzmann’s constant, kB = 1.381 x 10-23 J molecule-1 K-1. Avagadro’s number, N = 6.02 x 1023 mol-1.

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a

238 J

b

1000 J

c

2000 J

d

4988.2 J

answer is B.

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Detailed Solution

detailed_solution_thumbnail

Here T = 127 + 273 = 400K
N = 6.02 x 1023mol-1, kB = 1.381 x 1023 J molecule-1 K-1
Kinetic energy of one mole of gas,
= 4988.2 J

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