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Specific Heat Capacity

Same amount o...

Question

Same amount of heat energy, Q is supplied to ice at $0^{o} C$ and water at $100^{o} C$ . Choose the right option:

A

Mass of ice melted = Mass of water vaporised

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B

Mass of ice melted > Mass of water vaporised

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C

Mass of ice melted < Mass of water vaporised

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D

Can't be determined.

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Solution

The correct option is D Mass of ice melted > Mass of water vaporised
Given that heat supplied during melting = heat supplied during vaporisarion
$m_{f} L_{f} = m_{v} L_{v}$
$m_{f} / m_{v} = L_{v} / L_{f}$
$= 2268 / 336$
$= 6.75$
Hence, $m_{f} > m_{v}$

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