Find out the value of (P) in the following cycle:

Given `DeltaH_(1) =- 400 kJ, I.E. = + 50 kJ, D = + 50 kJ, DeltaH_(eg) = - 30 kJ` lattice energy `- - 100 kJ`

Find bond enthalpy of C=O (in kJ/mol) using following information : DeltaH_("atomisation")[C(s)]=700 kJ/mol DeltaH_(f)[CO_(2)(g)]=-400 kJ/mol BE_(o=o=500 kJ/mol Resonance energy of CO_(2)=-150 kJ/mol

If bond energy of H_(2),F_(2) and HF are in the ratio 2:1:3 and DeltaH_(a)(H_(2))=400kJ//mol . Then DeltaH_(f)(HF) is :

If bond energy of H_(2),F_(2) and HF are in the ratio 2:1:3 and DeltaH_(a)(H_(2))=400kJ//mol . Then DeltaH_(f)(HF) is :

Consider the following process :- Ato2B,DeltaH=+150 KJ 3Bto2C+D,DeltaH=+350 KJ G+Ato2D,DeltaH=+350 KJ For B+DtoG+2C,DeltaH will be