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o-na [289]
3 years ago
8

2.4 kg of nitrogen at an initial state of 285K and 150 kPa is compressed slowly in an isothermal process to a final pressure of

600 kPa. Determine the work.
Engineering
1 answer:
Neko [114]3 years ago
8 0

Answer:

W=-280.67 KJ

Explanation:

Given that

Initial pressure = 150 KPa

Final pressure = 600 KPa

Temperature T= 285 K

Mass m=2.4 Kg

We know that ,work in isothermal process given as

W=mRT\ ln\dfrac{P_1}{P_2}

Gas constant for nitrogen gas R=0.296 KJ/kgK

Now by putting the values

W=mRT\ ln\dfrac{P_1}{P_2}

W=2.4\times 0.296\times 285\ ln\dfrac{150}{600}

W=-280.67 KJ

Negative sign indicates that it is compression process and work is done on the gas.

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