Odisha Board Solutions for Chapter: Thermodynamics, Exercise 1: QUESTIONS

Derive the expression $∆{\mathrm{H}}^{\mathrm{o}}=-\mathrm{RT} \mathrm{InK}$.

Write a note on Hess's law.

Write a note on activation energy.

Write short note on heat of reaction.

Write short notes on Heat of fusion.

Define enthalpy of vaporisation. State Hess's law. Mention two conditions under which enthalpy change $\left(∆\mathrm{H}\right)$ may be equal to internal energy change $\left(∆\mathrm{E}\right)$

What are the limitations of $1^{\mathrm{st}}$ law of Thermodynamics? Discuss the scope of  $2^{\mathrm{nd}}$ law and write the various forms of statement of $2^{\mathrm{nd}}$ law of thermodynamics.

Give a brief account of third law of thermodynamics.