Question
The heat evolved in chemisorption lies in the range (in $\mathrm{kJ} / \mathrm{mol}$ ) of :(a) 80 to 240(b) 20 to 40(c) 40 to 80(d) 20 to 100
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The heat evolved during the combustion of $46 \mathrm{gm}$ of ethanol in a bomb calorimeter wad determined to be $670.5 \mathrm{kcal} / \mathrm{mol}$ at $25^{\circ} \mathrm{C}$. The value of $\Delta \mathrm{U}$ of the reaction at the same temperature is a. $-335.25 \mathrm{Kcal}$ b. $-660.3 \mathrm{Kcal}$ c. $-670.5 \mathrm{Kcal}$ d. $-2802.6 \mathrm{~kJ}$
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