JEE Main 2015 · 10 Apr · Shift 1 · Chemistry Q32

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ChemistrySingle correct+4 / -1Question 32 of 90

Which of the following is not an assumption of the kinetic theory of gases ?

A gas consists of many identical particles which are in continual motion.

Gas particles have negligible volume.

At high pressure, gas particles are difficult to compress.

Collisions of gas particles are perfectly elastic.

Answer and worked solution

Official answer: C

Kinetic theory assumes point particles, continual random motion and elastic collisions. "At high pressure gas particles are difficult to compress" is a real-gas effect, not an assumption.

Topics:Kinetic theory of gases

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JEE Main 2015 · 10 Apr · Shift 1, Chemistry question 32