Question
Which statement is incorrect

Answer

d

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The rate of a reaction doubles when its temperature changes from $300\, K$ to $310\, K.$ Activation energy of such a reaction will be .......... $kJ\, mol^{-1}$. $(R= 8.314\,JK^{-1} \,mol^{-1}$ and $\log 2=0.301)$
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This is because

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$2 mol$ of $Hg ( g )$ is combusted in a fixed volume bomb calorimeter with excess of $O _2$ at $298 K$ and $1 atm$ into $HgO ( s$ ). During the reaction, temperature increases from $298.0 K$ to $312.8 K$. If heat capacity of the bomb calorimeter and enthalpy of formation of $Hg ( g )$ are $20.00 kJ K ^{-1}$ and $61.32 kJ mol ^{-1}$ at $298 K$, respectively, the calculated standard molar enthalpy of formation of $HgO ( s )$ at $298 K ^{\text {is }} XkJ mol ^{-1}$. The value of $| X |$ is. . . . .[Given : Gas constant $R =8.3 J K ^{-1} mol ^{-1}$ ]
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