when you pump a bicycle pump quickly. the compression is almost adiabatic becaus

Question

when you pump a bicycle pump quickly. the compression is almost adiabatic

because there isn't much time for the gas exchange energy with anything. During a single pump, you do 36J of work on 4.26 x 10^-4 kg of air inside the cylinder. How much does the internal energy of the air inside the pump change during a single pump?
specific heat of air= 0.718 J/g-deg C.

b. Does temperature increase, dec the epeate incse3 15. When you pump a bicyce purp quicky, the compressicn is dlmost adiabofic be gas to exchange energy with onything. During a single pumo, you do 36 ot cyinder. How much does the intemal energy of the air inside the pu heat of air use c0.718 J/g."C because there isn't much time for the work on 426 x 10 kg ot ar inside the pJmo change dring a single pumpFor me speche eat ad

Explanation / Answer

work done = mass of air * R*(T2-T1)/(Y-1)

for adiabatic compression. Q=0

from 1st law of thermodynamics, deltaU= Q+W,

deltaU= W= 36 Joules

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