Identify the postulate(s) which help to formulate a mathematical model of gases:I. A finite volume of gas consists of a very large number of moleculesII. The size of the molecules is much smaller than the separation between moleculesIII. Molecules do not exert force on each other except during a collision.
Correct answer: E. I, II & III
- A. I only
- B. II only
- C. III only
- D. I & II only
- E. I, II & III
Explanation
All three statements are standard postulates of the kinetic theory: a finite volume contains a very large number of molecules, molecular size is negligible compared with the separation between molecules, and molecules exert no force on one another except during a collision.
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