NEET ChemistryClass 12Temperature dependence of rateMediumAssertion–Reason

Most reactions speed up noticeably when they are warmed. Judge the Assertion (A) and the Reason (R) below.

Assertion (A): For many chemical reactions the rate constant nearly doubles for a 10 K rise in temperature.
Reason (R): A rise in temperature increases the fraction of molecules whose kinetic energy equals or exceeds the activation energy.

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Most reactions speed up noticeably when they are warmed. Judge the Assertion (A) and the Reason (R) below.

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