According to the first law of thermodynamics, for an isolated system, `Deltau`=………..

Explain the importance of third law of thermodynamics.

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]

Which one of the following equations correctly represent the first law of thermodynamics for the given process occuring in an ideal gas

Hess's law is a corollary of the first law of thermo dynamics. Comment.

Which of the following laws of thermodynamics forms the basis for the definition of temperature?