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Q. |
Water is used in hot water bags because |
A. | It is easily obtained |
B. | It is cheaper and is not harmful |
C. | It has high specific heat |
D. | It Is easy to heat water |
Answer» C. It has high specific heat | |
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 |
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