Chemical energy

Question 1

What is Hess’s Law

Answer 1

Hess’s Law statesthat the enthalpy change for a chemical reaction is independent of the rout taken from reactants to products, so long as the starting and finishing conditions are the same for each route

Question 2

What is bond enthalpy

Answer 2

is the energy required to break one mole of bonds between the atoms in a mole of gaseous diatomic molecules, at standard temp and pressure

Question 3

Is bond breaking endo or exo thermic?

Answer 3

endothermic

Question 4

Is bond making exo or endo thermic

Answer 4

exothermic