A. 4800J
B. 1200J
C. 480J 7°
D. 202J
E. 80J
Correct Answer:
Option C = 480J
Explanation
H= mCθ
= 200 x 0.4 x 6
= 480J
How much heat is emitted when a body of mass 200g cools from 37°C to 31°C? (specific heat capacity of the body = 0.4Jg-1K-1,)
![An immersion heater rated 400W, 220V is used to heat a liquid of mass 0.5kg. If the temperature of the liquid increases uniformly at the rate of 2.5ºC per second, calculate the specific heat capacity of the liquid. [Assume no heat is lost]](https://erudites.ng/wp-content/plugins/contextual-related-posts/default.png "An immersion heater rated 400W, 220V is used to heat a liquid of mass 0.5kg. If the temperature of the liquid increases uniformly at the rate of 2.5ºC per second, calculate the specific heat capacity of the liquid. [Assume no heat is lost]")
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