Conservation of energy is the 1st law of thermodynamics.
Yes.
Thermal equilibrium
Thermodynamics is the study of the relationship between thermal energy and heat and work.
thermodynamics
Consider 2 beakers of water, in one beaker, the temperature of water is above room temperature, and the other is below room temperature. They are left on a table (they are not in contact with each other), after some time, equilibrium is reached. Both beakers of water are at the same temperature. The two beakers become in thermal equilibrium with the surroundings, thus they are in thermal equilibrium with each other, and they are at the same temperature. I hope that it helps you...
the second law of thermodynamics
I understand both to be equivalent. It is for historical reasons that the law has two different names.
Thermal equilibrium
Thermal is an adjective, meaning to do with heat. Thermodynamics is a noun, a branch of physics to do with the thermal properties of materials, and has several laws which are the basis of design of heat engines and other thermal processes.
Thermodynamics is the study of the relationship between thermal energy and heat and work.
Thermodynamics
Thermal coatings are highly advanced material systems applied to metallic surfaces, such as gas turbine or aero-engine parts, operating at elevated temperatures.