A gas expands against a variable pressure given by `P = (20)/(V)` (where P in atm and V in L). During expansion from volume of 1 litre to 10 litre, the gas undergoes a change in internal energy of 400 J. How much heat is absorbed by the gas during expansion?A. 46 JB. 4660 JC. 5065.8 JD. 4260 J

A gas expands against a variable pressure given by `P = (20)/(V)` (whe

1.	A gas expands against a variable pressure given by `P = (20)/(V)` (where P in atm and V in L). During expansion from volume of 1 litre to 10 litre, the gas undergoes a change in internal energy of 400 J. How much heat is absorbed by the gas during expansion?A. 46 JB. 4660 JC. 5065.8 JD. 4260 J
Answer» Correct Answer - C `intdw=int-P.dV` `"implies "w=-int20.(dV)/(V)=-20ln.(V_(2))/(V_(1))` `w=-46.06 " L-atm"=-4665.8 J` `DeltaU=q+wimplies400=q-4665.8` `q = 5065.8 J`

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A gas expands against a variable pressure given by `P = (20)/(V)` (where P in atm and V in L). During expansion from volume of 1 litre to 10 litre, the gas undergoes a change in internal energy of 400 J. How much heat is absorbed by the gas during expansion?A. 46 JB. 4660 JC. 5065.8 JD. 4260 J

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