Question

Assertion (A): In heating and dehumidification of air, relative humidity of air decreases.
Reason (R): Sensible heating causes enthalpy to decrease.
In light of the above statements, choose the correct answer from the options given below.

• A. Both A and R are true and R is the correct explanation of A
• B. Both A and R are true but R is NOT the correct explanation of A
• C. A is true but R is false
• D. A is false but R is true

Hint:

Enthalpy increases during sensible heating and relative humidity decreases during dehumidification

Answer 1

The Correct Option is D

In heating and dehumidification of air relative humidity decreases because the water vapor in the air is removed while heating Sensible heating does indeed increase the enthalpy but does not directly relate to a decrease in enthalpy