A block of aluminum is heated electrically by a 25 W heater. if the temperature rises by 10°C in 5 minutes, the heat capacity of the aluminum is?
- 850 JK-1
-
750 JK-1
- 650 JK-1
- 500 JK-1
The correct answer is: B
Explanation
Heat supplied = Heat gained
P x t = C ∆ Ø
(25 x 5 x 60)/10 = 750 JK-1
There is an explanation video available .