Question

What is the critical point of water?

(a) 374°C

(b) 157.5°C

(c) 31.0°C

(d) 240.9°C

I have been asked this question by my college professor while I was bunking the class.

This intriguing question comes from Basic Drying Theory in chapter Drying of Food Processing Unit Operations

Answer 1

Correct option is (a) 374°C

Best explanation: The critical point of water is 374°C. The critical point of sulphuric acid is 157.5°C. The critical point of supercritical carbon dioxideis 31.0°C. The critical point of ethanol is 240.9°C.