Question 12. If 2 kcal, of heat is supplied to a system cause to change the internal energy of a gas is 5030 J, and external work done is 3350 J, then what is mechanical equivalent of heat? (a) 41.90 J/kcal (b) 4190 J/cal (c) 4.19 J/kcal (d) 4.19 J/cal Answer
Two kilow-calories are supplied to a system. The internal energy of the system rises by 5030 J and external work done is 3350 J.
