The variation of with for a reaction is plotted as a straight line. If the line makes an angle of with the positive x-axis (i.e., slope is +1), what is the nature of the standard enthalpy change () fo

Question

The variation of $\log_{10} K$ with $1/T$ for a reaction is plotted as a straight line. If the line makes an angle of $45^\circ$ with the positive x-axis (i.e., slope is +1), what is the nature of the standard enthalpy change ($\Delta H^\circ$) for the reaction?

Prashant Kotian · Accepted Answer

Correct answer: A. The integrated Van 't Hoff equation gives slope . If the slope is positive (), then must be positive, which means is negative (Exothermic reaction).

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