Question
Chemistry Question on Thermodynamics terms
The amount of work, which can be obtained by supplying 200 cal of heat, is
A
840 J
B
840 erg
C
840 W
D
840 dyne
Answer
840 J
Explanation
Solution
Work done = heat supplied We know that 1 cal = 4.2 J, therefore W = 200 cal W = 200x 4.2 W = 840 J