Question

Thermodynamics is concerned in part with transformations between

• A. different forms of heat energy
• B. internal energy at various tempratures
• C. one form of mechanical energy into other forms
• D. heat, internal energy and mechanical work

Answer 1

Answer: (D)

heat, internal energy and mechanical work

The first law of thermodynamics gives us the relation between, heat supplied, internal energy and work done. Basically it talks about the interchangeability of energy (law of conservation of energy). It studies the relationship between heat temperature and energy.
Option D is correct.