Assertion (A): A thermodynamic system may be considered as a quantity of working substance with which interaction of heat and work are studied.
Reason (R): Energy in the form of work and heat are mutually convertible1
Both A and R are true and R is the correct explanation of A
2
Both A and R are true but R is not a correct explanation of A
3
A is true but R is false
4
A is false but R is true