Question

What is Dalton’s law?

(a) Total temperature is equal to sum of partial temperatures

(b) Total entropy is equal to sum of partial entropies

(c) Total pressure is equal to sum of partial pressures

(d) Total number of moles is equal to sum of mole fractions

The question was posed to me by my college director while I was bunking the class.

I'm obligated to ask this question of High Temperature Gases topic in portion Properties of High Temperature Gases of Aerodynamics

Answer 1

Right choice is (c) Total pressure is equal to sum of partial pressures

The explanation: Dalton’s law of partial pressure was formulated to find out the total pressure of the chemically reactive mixture. This is the sum of partial pressures of individual components in the mixture. Dalton’s law is only applicable or perfect gases which means that the intermolecular forces between individual molecules is negligible.