Thermodynamics has a big weightage in JEE. This topic also becomes very important as it is also in physics and equally important here. It will be given enough time and every concept will be thoroughly cleared. Thermodynamics-I covers basic definitions like system, surroundings, types of system, state functions, first law of thermodynamics, intensive and extensive properties, and applications of first law of thermodynamics. A number of numerical will be solved to be clear enough on everything.
Post - reading for Thermodynamics-l
Numerical Chemistry by P.Bahadur Physical chemistry by O.P Aggarwal