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प्रश्न
What amount of heat would be required to raise the temperature of 500 g of water from 30°C to 50°C? (sp. heat cap. of water= 4200 J/kg°C)
संख्यात्मक
उत्तर
Change in temperature = (50-30) = 20°C
Amount of heat required, Q = m x C x ?T
= 0.5 x 4200 x 20 = 42000 J
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