In: Physics
An ideal gas undergoes the following Carnot Cycle. It starts in a chamber of volume .0065 m3 and temperature 345 Kelvin and pressure 630 kPa (state 1). It is allowed to expand isothermally to a volume of .01066 m3 (state 2) while heat is added to the gas. Then it expands adiabatically to a volume of .01784 m3 (state 3). Then, it is compressed isothermally to a volume of Vf m3 (state 4) while heat is extracted from the gas. Finally, it returns to its initial state in an adiabatic process. (The gamma of the gas, γ = 1.28, Cv = 3.5R).
How much heat is added in the 1st isothermal process and the efficiency of this engine?
a.)1.878 kJ, 11.2%
b.) 2.029 kJ, 11.2%
c.) 2.029 kJ, 13.6%
d.) 2.334 kJ, 13.6%
e.) 2.334 kJ, 15.8%
Carnot cycle contains two isothermal(1-2 & 3-4) and two adiabatic(2-3 & 4-1)process.