Explain the importance of third law of thermodynamics.

a) Explain the first, second and third laws of thermodynamics. b) What do you meant by entropy? c) Explain the spontaneous process.

a) Explain the Zeroth law of thermodynamics. b) What are the important modes of transference of energy. Explain.

What is the significance of the second law of thermodynamics in the spontaneity of exothermic and endothermic reactions?

What is the importance of reversibility in thermodynamics?

Write the mathematical expression of First Law of thermodynamics.

Which of the following represents the first law of thermodynamics?(1) ΔU=q+w (2)ΔH=q+W, (3) Δ U=H+pΔV (4) ΔU=pΔV

Thermodynamics deals with energy changes of macroscopic system. a) Consider a chemical reaction taking place in a closed insulated vessel. To which type of thermodynamic system does it belong? b) State the first law of thermodynamics. c) 3 mol of an ideal gas at 1.5 atm and 25^oC expands isothermally in a reversible manner to twice its original volume against an external pressure of 1 atm. Calculate the work done. [R = 8.314 JK^-1mol^-1]

Explain the important characters of Mammalia.