Use the following data to calculate ${△}_{\mathrm{lattice}}{\mathrm{H}}^{\circ }$ for $\mathrm{NaBr}$.

${△}_{\mathrm{sub}}{\mathrm{H}}^{\circ }$ for sodium metal $= 108.4 \mathrm{kJ} {\mathrm{mol}}^{-1}$

Ionization enthalpy of sodium $= 496 \mathrm{kJ} {\mathrm{mol}}^{-1}$

Electron gain enthalpy of bromine $=- 325 \mathrm{kJ} {\mathrm{mol}}^{-1}$

Bond dissociation enthalpy of bromine $=192 \mathrm{kJ} {\mathrm{mol}}^{-1}$
${△}_{\mathrm{f}}{\mathrm{H}}^{\circ }$ for $\mathrm{NaBr}\left(\mathrm{s}\right)$ $= - 360.1 \mathrm{kJ} {\mathrm{mol}}^{-1}$
 

A sample of $1.0$ mol of a monoatomic ideal gas is taken through a cyclic process of expansion and compression as shown in the Figure. What will be the value of $∆\mathrm{H}$ for the cycle as a whole?

Identify the state functions and path functions out of the following :

enthalpy, entropy, heat, temperature, work, free energy.