Neon is compressed from 100 kPa and 16°C to 500 kPa in an isothermal compressor. Determine the change in the specific volume and specific enthalpy of neon caused by this compression. The gas constant of neon is R = 0.4119 kJ/kg·K, and the constant-pressure specific heat of neon is 1.0299 kJ/kg·K.

Explanation:

In this case, since neon could be considered as an ideal gas, the specific volumes at the first and second state are respectively:

Thus, the change in the specific volume turns out:

Which value has sense for the compression.

In addition, the specific enthalpy change just depend on the temperature as it is an ideal gas, therefore, since the process es isothermic:

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