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?
-
A.
850 JK-1 -
B.
750 JK-1 -
C.
650 JK-1 -
D.
500 JK-1
Correct Answer: Option B
Explanation
Heat supplied = Heat gained
P x t = C ∆ Ø
(25 x 5 x 60)/300 = 750 JK-1