Thermodynamics MCQ Question with Answer

Question No : 15
For the reaction
$$\begin{gathered} C+O_2\to C{O}_2 ∆H_1=394 KJ mol{e}^{-1} \\ 2CO+O_2\to 2C{O}_2∆H_2=569 KJ \\ ∆H for 1 mole formation of CO is...? \end{gathered}$$

Question No : 16
The heat change taking place in the reaction
$$\begin{gathered} H_2 O\left(I\right)\to H_{2}O\left(g\right),∆H_f{H}_2 O\left(g\right)=-57K Cal \\ ∆H_f{H}_2 O\left(I\right)=68.3K Cal\hspace{0.17em}is..? \end{gathered}$$

Question No : 17
The enthalpy of the elements in their standard states is taken as zero. So the enthalpy of formation of a compound may be

Question No : 18
Heat of neutralisation of HCI and NaOH is -57.32 KJ per gram equivalent and that of acetic acid and NaOH is -55.23 KJ per gram equivalent. The heat of dissociation of acetic acid per gram equivalent should be?

Question No : 19
Heat of reaction

Question No : 20
A person requires 2870 Kcal of energy for leading a normal life. If heat of combustion of cane sugar is -1349 Kcal then he must consume...................kg of cane sugar daily.

Question No : 21
A person requires 2870 Kcal of energy for leading a normal life. If heat of combustion of cane sugar is -1349 Kcal then he must consume...................kg of cane sugar daily.