Question

3)A copper calorimeter of mass 100gm and temperature 30°C contain water of mass 200gm and temperature of 30°C. if piece of ice of mass 40gm and temperature 0°C is added to it what will be temerature of mixture.(C= 0.1 cal/g°C) copper


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Answer 1

Answer:

Heat Capacity

Materials can be conductors or insulators. Another important thermal property of materials is heat capacity. When something is heated, it changes temperature. However, different materials need different amounts of heat to reach the same temperature. For example, consider the Sun simultaneously heating up the land and the sea. Land becomes hot more quickly than water. The heat required to increase the temperature of a substance by 1ºC is its heat capacity.

Water has a higher heat capacity than land. So, it takes a lot of heat to raise the temperature of water. Water can absorb a lot of heat without becoming too hot. This property of water has many uses in our lives. For example, water is used to make a cold compress for a person who has a fever. Fire engines use water to extinguish fires.

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Explanation: