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Enthalpy of solution of NaOH (solid) in water is -41.6 kJ mol-1. When NaOH is dissolved in water, the temperature of water

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Important Questions on Thermodynamics

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One mole of anhydrous MgCl2 dissolves in water and liberates 25 cal/mol of heat. Hhydration of MgCl2=-30 cal/mol. Heat of dissolution of MgCl2.H2O is:
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The enthalpy of neutralization of which of the following acid and base is nearly -13.6 kcal?
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Equal volume of HCOOH and NaOH are mixed. If 'x' is the heat of neutralisation of strong acid and strong base, then heat evolved on neutralisation is:
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If heat of dissociation of CHCl2COOH is 0.7 kcal/moleΔH for the reaction CHCl2COOH+KOHCHC2COOK+H2O is:
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Enthalpy of neutralisation of CH2COOH by NaOH is -50.6 kJ/mol and the heat of neutralisation of a strong acid with NaOH is -55.9 kJ/mol. The value of ΔH for the ionisation of CH3COOH is:
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For which one of the following reaction does the molar enthalpy change of a reaction correspond to lattice energy of KBr?
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Calculate the lattice energy for the reaction

Li+(g)+Cl-(g)LiCl(s)

Given that

ΔHsub(Li)=160; ΔHdssCl2=244; IP(Li)=520;

EA(Cl)=-365 and ΔHf(LiCl)=-400 (all in kJ mole-1 )

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The bond energyin kcal mol-1 of C - C single bond is approximately