A vapour compression system using Ammonia works between -25$^{\circ}$C and 40$^{\circ}$C as evaporator and condenser temperature respectively. Using P-h Chart, determine

i. COP

ii. Mass of refrigerant per TR

iii. Piston displacement per TR using volumetric efficiency = 83 %

iv. Heat rejected in the condenser per TR

v. Ideal COP.

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