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Heat Capacity

When 1 kg o...

Question

When $1 k g$ of water is heated through $1^{o} C$ , the amount of heat energy required to do so is :

1 c a l

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1 k c a l

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1000 c a l

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both (b) and (c)

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Solution

The correct option is C both (b) and (c)
$Q = m c Δ T$
$= 1 \times 4200 \times 1$
$= 4200 J = 1000 c a l = 1 k c a l$

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