SSC
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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42 J/kg oC
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420 J/kg oC
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4200 J/kg oC
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42000 J/kg oC
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Detailed explanation-1: -The specific heat capacity of water is 4, 200 Joules per kilogram per degree Celsius (J/kg°C). This means that it takes 4, 200 J to raise the temperature of 1 kg of water by 1°C. Lead will warm up and cool down faster because it doesn’t take much energy to change its temperature.
Detailed explanation-2: -The specific heat capacity of water is 4.18 J / (g Celsius). Specific heat (or heat capacity) (C) is the amount of heat required to change the temperature of a mass unit of a substance by one degree.
Detailed explanation-3: -The beaker of water is heated until the water reaches boiling point (100 °C). The specific heat capacity of water is 4200 J/kg °C. The total amount of thermal energy supplied to the water is 84 000 J.