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At what temperature will the average KE ...

At what temperature will the average KE per molecule of a gas be exactly half its value at NTP?

A

150 K

B

136.5 K

C

273 K

D

546 K

Text Solution

Verified by Experts

The correct Answer is:
B
`E_(2)=(E_(1))/(2) and T_(1)=273`
`(E_(2))/(E_(1))=(T_(2))/(T_(1))`
`therefore T_(2)=(E_(2))/(E_(1))`
`T_(1)=(273)/(2)`
`therefore T_(2)=136.5K`
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