2 One mole of an ideal gas, Cp = Rand Cy R, is compressed adiabatically in a piston/cylinder device from 2 bar and 25°C to 7 bar. The process is irreversible and requires 35% more work than a reversible, adiabatic compression from the same initial state to the same final pressure. What would the final temperature in Kelvin be for reversible, adiabatic compression? How much work in Joules is needed for reversible, adiabatic compression? What is the entropy change in 44 for the adiabatic reversible compression? K How much work in Joules is needed for the irreversible compression? What is the actual final temperature in Kelvin? What is the entropy change in for the irreversible compression?

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