(Solved): 1kg of gas expands adiabatically in a closed systemm from 227C and 7bar to a final pressure of 1.5ba ...

1kg of gas expands adiabatically in a closed systemm from 227C and 7bar to a final pressure of 1.5bar. Determine the work done. Take Cp = 0.994kJ/kg-K and Cv = 0.72kJ/kg-K

10. \( 1 \mathrm{~kg} \) of gas expands adiabatically in a closed system from \( 227 \mathrm{C} \) and \( 7 \mathrm{bar} \) to a final pressure of \( 1.5 \mathrm{bar} \). Determine the work done. Take \( \mathrm{Cp}=0.994 \mathrm{~kJ} / \mathrm{kg}-\mathrm{K} \) and \( \mathrm{Cv}= \) \( \mathbf{0 . 7 2} \mathrm{kJ} / \mathrm{kg}-\mathrm{K} \) a) \( 120.5 \mathrm{~kJ} \) b) \( -120.5 \mathrm{~kJ} \) C) \( 124.8 \mathrm{~kJ} \) d) \( -124.8 \mathrm{~kJ} \) e) None of these