Assertion :Energy can be transferred between gaseous molecules during collisions but $u_{rms}$ remains constant. Reason: The average kinetic energy of gaseous molecules remains constant as long as the temperature is constant and therefore, $u_{rms}$ remains unchanged during the collision.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Assertion is incorrect but Reason is correct

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
The average kinetic energy of gaseous molecules remains constant as long as the temperature is constant and therefore, $u_{rms}$ remains unchanged during the collision.

Energy can be transferred between gaseous molecules during collisions but $u_{r m s}$ remains constant.

The mathematical expression for the root mean square speed is $u_{rms} = \sqrt{\frac{3 R T}{M}}$

Thus, both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

Hence, the correct option is $A$

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Similar questions

Assertion (A) Rate constant determined from Arrhenius equation are fairly accurate for simple as well as complex molecules.

Reason (R) Reactant molecules undergo chemical change irrespective of their orientation during collision.

(a) Both assertion and reason are correct and the reason is correct explanation of assertion
(b) Both assertion and reason are correct, but reason does not explain assertion.
(c) Assertion is correct, but reason is incorrect
(d) Both assertion and reason are incorrect
(e) Assertion is incorrect but reason is correct.

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Reason (R) Only those collisions in which molecules have correct orientation and sufficient kinetic energy lead to compound formation.

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Reason (R) A catalyst participating in the reaction forms different activated complex and lowers down the activation energy but the difference in enrgy of reactant and product remains the same.

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