The specific heat of air at constant pressure is $1.005 k J / k g K$ and the specific heat of air at constant volume is $0.718 k J / k g K$ .Find the specific gas constant.

0.287 K J / k g K

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0.21 k J / k g K

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0.34 k J / k g K

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0.19 k J / k g K

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Solution

The correct option is A $0.287 K J / k g K$
Specific gas constant = Specific heat at constant pressure - Specific heat at constant volume
= 1.005 - 0.718
= 0.287 KJ/kgK

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In an experimaental set-up, air flows between two stations $P$ and $Q$ adiabatically. The direction of flow depdns on the pressure and temperature conditions maintained at $P$ and $Q$ . The conditions at $P$ are $150 k P a$ and $35 K$ . The temperature at station $Q$ is $300 K$ . The following are the properties and relations pertaining to air:
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Specific heat at constnat volume,
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The specific heat of air at constant pressure is 1.005 kJ/kg K and the specific heat of air at constant volume is 0.718 kJ/kg K .Find the specific gas constant.

The correct option is A 0.287 KJ/kgKSpecific gas constant = Specific heat at constant pressure - Specific heat at constant volume = 1.005 - 0.718 = 0.287 KJ/kgK

The specific heat of air at constant pressure is $1.005 k J / k g K$ and the specific heat of air at constant volume is $0.718 k J / k g K$ .Find the specific gas constant.

The correct option is A $0.287 K J / k g K$
Specific gas constant = Specific heat at constant pressure - Specific heat at constant volume
= 1.005 - 0.718
= 0.287 KJ/kgK