Question

Which of the following statements are TRUE with respect to heat and work?
(i) They are boundary phenomena
(ii) They are exact differentials
(iii) They are path functions

• A. both (i) and (ii)
• B. both (i) and (iii)
• C. both (ii) and (iii)
• D. only (iii)

Answer 1

The correct option is B both (i) and (iii)

(b)
Heat:
1. When heat is added to the system, it is positive.
2. Heat transfer is path function.
3. Heat is not a property
4. Heat is inexact differential.
5. Heat is boundary phenomena.
6. Heat is energy in transit.
Works:
1. Work transfer is path function.
2. It is not a property.
3. It is inexact differential.
4. Heat is inexact differential.
5. When work is added to the system, it is negative.
6. Work is energy in transit.