Q.

Which of the following statements is incorrect according to kinetic theory of gases?

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a

Between two collisions a gas molecule may travel in curved paths

b

At constant temperature, velocity of an individual gas molecule changes many times in one second.

c

There is no attraction or repulsion force between gas molecules.

d

All gas molecules are assumed to be spherical in shape.

answer is C.

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Detailed Solution

The postulates of the kinetic theory of gases state that between two successive collisions, a gas's molecules move in a straight path. Only when they collide with other molecules or the container's walls do they alter their course.

Hence, option C is not correct.

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