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| Q. |
Which one of the following has the highest value of specific heat? |
| A. | Glass |
| B. | Copper |
| C. | Lead |
| D. | Water |
| Answer» D. Water | |
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Explanation: The specific heat is the amount of heat per unit mass required to raise the temperature by one degree Celsius. The specific heat of water is 1 calorie/gram °C = 4.186 joule/gram °C which is higher than any other common substance. As a result, water plays a very important role in temperature regulation. The specific heat per gram for water is much higher than that for a metal. |
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