- #1
Boomzxc
- 25
- 0
Qn : https://www.dropbox.com/s/dpcws9q4bjpzvtp/20151123_112037.jpg?dl=0
Why is option A and C wrong or correct?
My attempted answer :
A :A is plausible as if the piston is suddenly moved inwards, the gas molecules bounce off the piston at higher speeds
Since Temp proportional to rms speed, temp increases
Or
based on 1st law of thermodynamics
The piston suddenly moved in... So means Q=0 cos no time for heat transfer.
Since compression, W is +ve so U is +ve. That implies T increases.
C : as P increases, V decreases
Please help to correct my understanding! !
Thanks a million! !
Why is option A and C wrong or correct?
My attempted answer :
A :A is plausible as if the piston is suddenly moved inwards, the gas molecules bounce off the piston at higher speeds
Since Temp proportional to rms speed, temp increases
Or
based on 1st law of thermodynamics
The piston suddenly moved in... So means Q=0 cos no time for heat transfer.
Since compression, W is +ve so U is +ve. That implies T increases.
C : as P increases, V decreases
Please help to correct my understanding! !
Thanks a million! !
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