State Hess' law.

(i) State Hess's law. (ii) Judge the spontaneity of the following reaction at 298K temperature and at a particular pressure: Br_(2)(l)+Cl_(2)(g)to2BrCl(g) Given: DeltaH=29.3kJ*mol^(-1) and DeltaS=104.1J*K^(-1)*mol^(-1) .

(i) State hess's law. (ii) For the following reaction at 298K 2X+Y to Z DeltaH=300kJ*mol^(-1) and DeltaS=0.2kJ*K^(-1)*mol^(-1) At what temperature will the reaction become spontaneous considering DeltaH and DeltaS to be constant over the temperature range?

Write Hess's law.

(i) State annd explain with example the Hess's law of constant heat summation. (ii) Show that Hess's law is simply a corollary of first law of thermodynamics.

Write Hess's law of constant heat summation. Write the mathematical expression-for entropy.

State Gauss's law in electrostatics. Proof of gauss law.

State Boyles law.

State Hooke's law.

State Lenz’s law.

State Stokes law.