GATE 2023 || Thermodynamics || Evaluation Quiz 8

Which Thermodynamics law predicts correctly, about the feasibility/directionality of the process __________?

In air-conditioning systems, air may be cooled and dehumidified by

1) Spraying chilled water to air in the form of fine mist.

2) Circulating chilled water or brine in a tube placed across the air flow.

3) Placing the evaporator coil across the air flow.

Which of the above statements are corrects?

Which of the following equations does not correctly represent the first law of thermodynamics for the given processes involving an ideal gas ? (Assume non—expansion work is zero)