Write Hess's 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) .

State Hess' law.

State Flemmings left hand rule. Write Ohm'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.

(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?

Mention two applications of Hess's law.

What is the most important feature of Hess's law?

(i) According to Hess's law it is possible to determine the enthalpy of formation of a substance which cannot be measured directly-explain. (ii) What do you mean by heat of transition?

Write Charle's law equation

Write Nelands's law of octaves.