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Q.

As the temperature is raised from 20∘C to 40∘C, the average kinetic energy of neon atoms changes by a factor of which of the following?

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a

1/2

b

2

c

313/293

d

313/293

answer is C.

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Detailed Solution

The average kinetic energy is given by KE=(3/2)kT. Hence

(KE)40∘C(KE)20∘C=(273+40)K(273+20)K=313293

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