One kg of air initially at 1 bar and 156 degree C is compressed isothermally till the volume is reduced to 0.28 $m^3$.

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One kg of air initially at 1 bar and 156 degree C is compressed isothermally till the volume is reduced to 0.28

$m^3$ .

written 6.5 years ago by

teamques10 ★ 69k

• modified 5.6 years ago

Determine the work done and change in internal energy.

thermodynamics

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written 6.5 years ago by

teamques10 ★ 69k

• modified 6.4 years ago

Given We Assume R= 0.287 KJ/KgK for air ,m = 1 kg,

Initial temp T1 = 156⁰C = 156+273= 429⁰K,

Initial pressure P1= 1 bar = 100KPa ,

Final Volume V2= 0.28 $m^3$

Applying characteristic gas equation,

P1V1 = mRT1

100 X V1= 1 X 0.287 X 429

V1 =1.231 $m^3$ …

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