1 litre of gas at STP is expanded adibatically to

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1 litre of gas at STP is expanded adibatically to 3 litre.Find work done by gas.gaama=1.4&3power1.4=4.65

Arun · Accepted Answer

V1​=1l⇒ initial volume, V1​=1×10−3m3V2​=3l⇒ final volume, V2​=3×10−3m3At STP:T=273KP1​=101.325kPa⇒ initial pressure Y=1.4Work done in adiabatic process, ΔW=−(Y−1P2​V2​−P1​V1​​)adiabatic ⇒PVγ=constant⇒P1​V1γ​=P2​V2γ​⇒P2​=P1​(V2​V1​​)γ=1.01325(3×10−31×10−3​)1.4 ⇒P2​=101.325×(3)1.41​=(4.6555101.325​)kPa P2​=21.7646KPa ΔW=−(1.4−121.7646×103×3×10−3−101.325×103×1×10−3​) ΔW=−(0.465.2937−101.325​)=90.5JConsidering only magnitude, the work done by the air will be 90.5J

Thermal Physics> 1 litre of gas at STP is expanded adibati...

1 litre of gas at STP is expanded adibatically to 3 litre.Find work done by gas.gaama=1.4&3power1.4=4.65

Sravankumar Kancharla , 4 Years ago

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Thermal Physics> 1 litre of gas at STP is expanded adibati...

1 litre of gas at STP is expanded adibatically to 3 litre.Find work done by gas.gaama=1.4&3power1.4=4.65

Sravankumar Kancharla , 4 Years ago

Arun

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