The quantity of heat required to raise the temperature of 2000 g of water from $10^{\circ} C$ to $50^{\circ} C$

80 cal

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80,000 cal

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8000 cal

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none of these

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Solution

The correct option is B 80,000 cal
Heat $= m S △ T = 2000 \times 1 \times (50 - 10) = 2000 \times 40 = 80000 c a l$

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