Question

The latent heat of vaporization at the critical point is

• A. less than zero
• B. greater than zero
• C. equal to zero
• D. equal to one

Hint:

At the critical point, the liquid and vapor phases merge, so the latent heat of vaporization becomes zero.

Answer 1

The Correct Option is C

Step 1: Latent Heat at the Critical Point
At the critical point, liquid and vapor are indistinguishable, resulting in a latent heat of vaporization of zero. The phase transition from liquid to vapor ceases to occur in the conventional manner at this point.Step 2: Conclusion
The latent heat of vaporization is zero at the critical point. Final Answer: \[ \boxed{0} \]