Thermodynamics · Chemistry · AIIMS

The correct relation is

At $$25^{\circ} \mathrm{C}, 1$$ mole of butane is heated then $$\mathrm{CO}_2$$ and $$\mathrm{H}_2 \mathrm{O}$$ liquid is formed work done is

Assertion : $$U$$ is state function.

Reason : $$T$$ is an intensive property.

In an adiabatic process, no transfer of heat takes place between system and surroundings. Choose the correct option for free expansion of an ideal gas under adiabatic condition from the following

$$\Delta H$$ and $$\Delta E$$ for the reaction,

$$\mathrm{Fe}_2 \mathrm{O}_3(s)+3 \mathrm{H}_2(g) \longrightarrow 2 \mathrm{Fe}(s)+\mathrm{H}_2 \mathrm{O}(l)$$

at constant temperature are related as