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One joule is the energy required to (A) Raise the temperature of 1 gm of water by 1°C (B) Raise the temperature of 1 kg of water by 1°C (C) Move a mass of 1 gm by 1 cm distance by a force of 1 Newton (D) Move a mass of 1 kg by 1 m distance by a force of 1 Newton |
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Answer» One joule is the energy required to raise the temperature of 1 gm of water by 1°C. Calorie (cal) is the energy needed to increase 1 gram of water by 1°C at a pressure of 1 atmosphere. 1 cal = 4.184 J. So 1J = 0.24 cal. |
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