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WAEC - Physics (1998 - No. 16)
How much heat is emitted when a body of mass 200g cools from 37
o
C to 31
o
C? (specific heat capacity of the body = 0.4Jg
-1
K
-1
,)
4800J
1200J
480J
202J
80J
解释
H = mC\(\theta\) = 200 x 0.4 x 6
= 480J
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