The standard heat of sublimation of sodium metal is 108.4`kJ*mol^(-1)`. What is its standard heat of atomisation?

The heat of formation of crystalline sodium chloride is -410 kJ mol^(-1) . The heat of sublimation of sodium metal is 108.8 kJ mol^(-1) . The heat of dissociation of chlorine gas into atoms is 242.7 kJ mol^(-1) . The ionisation energy of Na and electron affinity of Cl are 493. 7 kJ and -368.2 kJ respectively. Calculate the lattice energy of NaCl .

The heat of formation of crystalline sodium chloride is -410 kJ mol^(-1) . The heat of sublimation of sodium metal is 180.8 kJ mol^(-1) . The heat of dissociation of chlorine gas into atoms is 242.7 kJ mol^(-1) . The ionisation energy of Na and electron affinity of Cl are 493.7 kJ and -368.2 kJ respectively. Calculate the lattice energy of NaCl.

The standard heat of combustion of propane is -2220.1KJ mol^(-1) . The standard heat of vaporisation of liquid water is 44.0KJ mol^(-1) . What is DeltaH^(@) of C_(3)H_(8)(g)+5O_(2)(g)rarr3CO_(2)(g)+4H_(2)O(g)

At 25^(@)C , the standard heat of formation for Br_(2)(g) is 30.9kJ*mol^(-1) . At this temperature, the heat of vaporisation for Br_(2)(l) is-

?H for the reaction, F_(2)+2HClrarr2HF+Cl_(2) is -352.8 kJ and standard heat of formation of HF is -268.3 kJ mol^(-1) . Calculate standard heat of formation of HCl.

When a mole of magnesium bromide is prepared from 1 mole of magnesium and 1 mole of liquid bromine, 524 kJ of energy is released. The heat of sublimation of Mg metal is 148 "kJ mol"^(-1) . The heat of dissociation of bromine gas into atoms is 193 "kJ mol"^(-1) . The heat of vaporization of liquid bromine is 31 kJ "mol"^(-1) . The ionisation energy of magnesium is 2187 kJ mol^(-1) and the electron affinity of bromine is - 662 "kJ mol"^(-1) . Calculate the lattice energy of magnesium bromide.

The standard heat of combustion of graphite carbon is -393.5 kJ mol^(-1) . The standard enthalpy of CO_(2) is