One mole of an ideal gas at 350K is in a 2.0 L vessel of thermally conducting walls, which are in contact with the surroundings....

0.3 g of ethane undergoes combustion at $27^{\circ} \mathrm{C}$ in a bomb calorimeter. The temperature of calorimeter system (including the water) is found to rise...

1 mole of ideal gas is allowed to expand reversibly and adiabatically from a temperature of $27^{\circ} \mathrm{C}$. The work done is $3 \mathrm{~kJ} \mathrm{~mol}^{-1}$....

28.0 L of $\mathrm{CO}_2$ is produced on complete combustion of 16.8 L gaseous mixture of ethane and methane at $25^{\circ} \mathrm{C}$ and 1 atm ....

One mole of an ideal monoatomic gas is subjected to changes as shown in the graph. The magnitude of the work done (by the system...

30.4 kJ of heat is required to melt one mole of sodium chloride and the entropy change at the melting point is $...

A2 + B2  2AB. kJ mol–1 AB, A2 and B2 are diatomic molecule. If the bond enthalpies of A2, B2 and AB are in...

Solid fuel used in rocket is a mixture of $\mathrm{Fe}_2 \mathrm{O}_3$ and Al (in ratio 122 ). The heat evolved (kJ) per gram of the...

When a 60 W electric heater is immersed in a gas for 100s in a constant volume container with adiabatic walls, the temperature of the...

Given:
(A) $2 \mathrm{CO}(\mathrm{g})+\mathrm{O}_2(\mathrm{~g}) \rightarrow 2 \mathrm{CO}_2(\mathrm{~g})$ in $\quad \Delta \mathrm{H}_1^{\ominus}=-\mathrm{x} \mathrm{kJ} \mathrm{mol}^{-1}$
(B) C (graphite) $+\mathrm{O}_2(\mathrm{~g}) \rightarrow \mathrm{CO}_2(\mathrm{~g})$; $\Delta \mathrm{H}_2^{\ominus}=-\mathrm{y} \mathrm{kJ} \mathrm{mol}^{-1}$...