In the diagram shown Qiaf=80 cal and Wiaf=50 cal. If W=−30 cal for the curved path fi, value of Q for path fi, will be
Liquid is filled in a vessel which is kept in a room with temperature 20o C. When the temperature of the liquid is 80o C, then it loses heat at the rate of 60 cal/sec. What will be the rate of loss of heat when the temperature of the liquid is 40o C