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July 30, 2014

July 30, 2014

Posted by **Dia** on Sunday, December 18, 2011 at 10:13am.

The gas is compressed to a volume of 0.02 m3. The process is adiabatic and the

specific heat ratio of the gas is 1.66. Determine

(a) the pressure in the cylinder after compression;

(b) work done to reduce the volume of the gas; and

(c) percentage change of the temperature.

- Physics -
**drwls**, Sunday, December 18, 2011 at 11:01am(a) Use the relation P V^1.66 = constant

(b) Work = Integral of P*dV. Express P as a function of V to do the integration

(c) Use the relation PV/T = constant to get the new T.

OR use the isentropic compression relation

(T2/T1) = (V1/V2)^(g-1)

where g = 1.66

You should get the same answer either way.

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