Question

The arrhenius relationship of two different reactions is shown below. Which reaction is faster at a lower temperature and which is more sensitive to changes of temperature

Answer 1

Answer:

As the temperature increases, the rate of a reaction increases. For example, the time taken to melt a metal will be much higher at a lower ..................................

Answer 2

The correct image to the question has been attached below.

The Main Answer is: Reaction B is faster at a lower temperature and Reaction A is more sensitive to temperature changes.

Given: A graph showing the plot of Arrhenius equations for 2 reactions A and B, plotted as lnK vs 1/T

To Find: Which reaction is faster at a lower temperature and which is more sensitive to changes in temperature.

Solution:

The Arrhenius equation is as follows:

K = A$e^{\frac{-Ea}{RT} }$

Taking natural log on both sides-

lnK = lnA - Ea/RT

From this equation-

The slope of the graph = -Ea/R

From the given graph, it is clear that-

slope of A is more negative than slope of B

∴ $(Ea)_{A} > (Ea)_{B}$

This means that Reaction B requires less energy for initiating the reaction.

Hence,  at lower temperatures, reaction B will be faster than Reaction A.

And, as the coefficient of the term containing 'Temperature' is greater for Reaction A, it will be more sensitive to changes in temperature.

This is because, a small temperature change will be multiplied by a large quantity and become significant.

Therefore, Reaction B will be faster and Reaction A will be more sensitive to temperature changes.

For similar questions on the Arrhenius equation, refer to:

https://brainly.in/question/38166229

https://brainly.in/question/10702539?msp_srt_exp=6

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