Physics > 2002 > 22
WASSCE
Calcuate the energy required to vaporise 50g of water initially at 80∘C.[specfic heat capacity of water = 4.2Jg-1K-1] at 80]
A.
113,000J
B.
117,200J
C.
234,400J
D.
420,000J
Answer: B
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