What are state and path functions? Give two examples

Enthalpy of neutralization is always a constant when a strong acid is neutralized by a strong base: account for the statement

State the various statements of second law of thermodynamics.

1 mole of an ideal gas, maintained at 4.1 atm and at a certain temperature, absorbs heat 3710 J and expands to 2 litres. Calculate the entropy change in expansion process.

Cyanamide (NH₂CN) is completely burnt in excess oxygen in a bomb calorimeter, ΔU was found to be -742.4 kJ mol^-1calculate the enthalpy change of the reaction at 298K. NH₂CN_(S) +\(\frac{3}{2}\)O_2(g)⟶ N_2(g)+ CO_2(g)+ H₂O(I) ΔH= ?