Question

Natural gas is a mixture of methane, ethane, propane and butane as well as other components. Composition varies by point of origin of the gas. Consider natural gas with an equivalent molecular weight of 23.6 and an equivalent specific heat, cp, of 2.01 kJ/Kg K. The gas is slowly compressed in a frictionless, adiabatic process from an initial volume of 212 cm3 to a final volume of 98 cm3. If the initial pressure is 39 kPa, and the initial temperature is 15°C, find the final temperature and pressure. Assume the mixture can be modeled as an ideal gas.

Answer 1

final pressure is 99.2 kPa
final Temperature is 65.63°C