Consider the Arrhenius equation given below and mark the correct option.

k = Ae

A. Rate constant increases exponentially with increasing activation energy and decreasing  temperature.

B. Rate constant decreases exponentially with increasing activation energy and decreasing temperature.

C. Rate constant increases exponentially with decreasing activation energy and decreasing temperature.

D. Rate constant increases exponentially with decreasing activation energy and increasing temperature.

<p>This is a Fill in the blanks Type Question as classified in NCERT Exemplar</p><p><strong>Ans:</strong> Correct option D</p><p><strong>k = Ae -&nbsp;</strong><strong>&nbsp;&nbsp; <span contenteditable="false"> <math> <mfrac> <mrow> <mrow> <mi mathvariant="bold"> </mi> <mi mathvariant="bold">E</mi> <mi mathvariant="bold">a</mi> </mrow> </mrow> <mrow> <mrow> <mi mathvariant="bold">R</mi> <mi mathvariant="bold">T</mi> </mrow> </mrow> </mfrac> </math> </span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </strong></p><p>From this equation</p><p>Kα<span contenteditable="false"> <math> <mfrac> <mrow> <mrow> <mn>1</mn> </mrow> </mrow> <mrow> <mrow> <mi mathvariant="normal">E</mi> <mi mathvariant="normal">a</mi> </mrow> </mrow> </mfrac> </math> </span></p><p>When Activation energy <strong>Ea</strong> decreases, rate constant <strong>k</strong></p><p>&nbsp;</p><p>&nbsp;increases.</p><p>Hence, Rate constant increases exponentially with decreasing activation energy and increasing temperature.&nbsp;</p>

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