Quality of heat Questions And Answers (part 2)

Quality of heat Questions

1. 500g of a metal is heated to 100^oC and then placed in a 200g mass of water at 15^oC. If the

final temperature rises to 21^oC, calculate the specific heat capacity of the metal.

(Specific heat capacity of water = 4200J^-1kg^-1

1. Heat lost by the metal = Heat gained by the water

MmCm= MWCW

0.5 x CM(100-21)^oC = 0.2 x 4200 x(21-15)^oC

Cm = 5040 = 127.59JKg^-1K^-1

39.5

');}

subscriber