JEE MAINS · Chemistry
Thermodynamics (C)
328 practice questions for JEE Mains — 93 easy · 165 medium · 70 hard. Every question is graded instantly with a step-by-step solution when you miss it.
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MCQ
The equilibrium concentrations of the species in the reaction$A+B⇋C+D$are$2,3,10\mathrm{and}6\mathrm{mol}L^{-1}$respectively at$300K$.$\Delta\,G^{\circ\,}$for the reaction is $\left(R=2\mathrm{cal}/\mathrm{mol}K\right)$
MCQ
The combination of plots which does not represent isothermal expansion of an ideal gas is $(A)$ $(B)$ $\left(C\right)$ $(D)$
Numerical
$A_{2}+B_{2}\rightarrow\,2\mathrm{AB}.\Delta\,H_{f}=-200\mathrm{kJ}\mathrm{mol}^{-1}$ $\mathrm{AB},A_{2}$and $B_{2}$are diatomic molecules. If the bond enthalpies of $A_{2},B_{2}$and $\mathrm{AB}$ are in the…
Numerical
The enthalpy change for the conversion of $\frac{1}{2}\mathrm{Cl}_{2}$(g) to $\mathrm{Cl}^{-}(\mathrm{aq})$ is $(-)$ $\mathrm{kJmol}^{-1}$ (Nearest integer) Given :…
Numerical
Consider the following reaction approaching equilibrium at $27^{\circ}C$ and $1$ atm pressure $A+B\underset{K_{r}=10^{2}}{\overset{K_{t}=0^{3}}{\rightleftharpoons\,}}C+D$ The standard Gibb's energy change…
MCQ
Which of the following relations are correct? (A) $\mathrm{\DeltaU}=q+\mathrm{p\DeltaV}$ (B) $\mathrm{\DeltaG}=\mathrm{\DeltaH}-\mathrm{T\DeltaS}$ (C) $\mathrm{\DeltaS}=\frac{q_{\mathrm{rev}}}{T}$ (D)…
MCQ
Consider the given data : (a) $\mathrm{HCl}(\mathrm{g})+10 \mathrm{H}_2 \mathrm{O}(\mathrm{l}) \rightarrow \mathrm{HCl}.10 \mathrm{H}_2 \mathrm{O}$ $\Delta \mathrm{H}=-69.01 \mathrm{~kJ} \mathrm{~mol}^{-1}$ (b)…
Numerical
One mole of an ideal gas at$350K$ is in a $2.0L$ vessel of thermally conducting walls, which are in contact with the surroundings. It undergoes isothermal reversible expansion from$2.0L$to$3.0L$ against a constant…
Numerical
Combustion of 1 mole of benzene is expressed at $\(\mathrm{C}_6$ $\mathrm{H}_6(\mathrm{l})+\frac{15}{2}$ $\mathrm{O}_2(\mathrm{~g})$ $\rightarrow$ 6 $\mathrm{CO}_2(\mathrm{~g})+3$ $\mathrm{H}_2$ $\mathrm{O}(\mathrm{l})$…
MCQ
Consider the following data for the reaction $X_2(g) + Y_2(g) \rightleftharpoons 2XY(g)$ at $600\text{ K}$. The $\Delta_r G^\circ$ (in kJ mol$^{-1}$) for the reaction is : Compound$\Delta_f H^\circ_{600K}$ (kJ…
Numerical
Consider the following reaction at $298K$. $\frac{3}{2}O_{2\left(g\right)}\rightleftharpoons\,O_{3\left(g\right)}.K_{p}=2.47\times\,10^{-29}$ $\Delta\,_{r}G^{0}$for the reaction is _________ $\mathrm{kJ}$. (Given…
Numerical
The incorrect statements from the following is: A.The electrical work that a reaction can perform at constant pressure and temperature is equal to the reaction Gibbs energy. B.$E_{\mathrm{cell}}^{\circ\,}$ is dependent…