Question

What is the limitation of Dalton’s law?

(a) It implies only for real gases at low pressure

(b) It implies only for real gases at high pressure

(c) It implies only for real gases at low concentration

(d) It implies only for real gases at high concentration

I have been asked this question in an online interview.

This question is from Distillation topic in chapter Distillation of Food Processing Unit Operations

Answer 1

The correct option is (a) It implies only for real gases at low pressure

The best explanation: The Dalton’s law is good for real gases at low pressure, but at high pressure, it deviates considerably. The mixture of gases is non-reactive in nature. Another assumption is that the interaction between each individual gas molecules is same as the molecules in the mixture.