Question

he temperature of gas is -73°C. To what temperature should it be heated so that
average kinetic energy of the molecule is doubled ?
the root mean square velocity of the molecules is doubled ?
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Answer 1

Answer:

According to the kinetic theory of gases

vrms=3MRT

so vrmsαT

v1v2=T1T2             eq(1)

v2=2v1

T1=0oC=273K

substitute values back to eq(1)

2=273T2

T2=4×273=1092K=819oC

T2=819oC

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