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,)
![Ice of mass 10g at 5ºC was completely converted to water at 0ºC, calculate the quantity of heat used. [specific heat capacity of ice = 2.1 Jg-1K-1, specific latent heat of fusion of ice = 336 Jg‾¹]](https://erudites.ng/wp-content/plugins/contextual-related-posts/default.png "Ice of mass 10g at 5ºC was completely converted to water at 0ºC, calculate the quantity of heat used. [specific heat capacity of ice = 2.1 Jg-1K-1, specific latent heat of fusion of ice = 336 Jg‾¹]")
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