What is the reason for the change in enthalpy

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what is the reason for the change in enthalpy between the throttle valve and the evaporator in a practical refrigeration cycle that is using R12 refrigerant.

Reference no: EM13212681

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What is the reason for the change in enthalpy : what is the reason for the change in enthalpy between the throttle valve and the evaporator in a practical refrigeration cycle that is using R12 refrigerant.
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