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The following physics responses are provided by a student and, as such, should be considered in that context. While every effort is made for accuracy, absolute correctness cannot be fully guaranteed.
| Question | |
C | 11 |
I | |
Question Twenty grams of a solid at 70°C is placed in 100 grams of a fluid at 20°C. Thermal equilibrium is reached at 30°C. The specific heat of the solid: | |
Answer Is more than that of the fluid. | |
Notes
| User | Added | Note | e | d |
|---|---|---|---|---|
| KillGorack | 2023-07-08 21:28:47 | The correct answer is 3) is more than that of the fluid. The specific heat of a substance is a measure of how much heat energy is required to raise the temperature of a given mass of the substance by a certain amount. It is an intrinsic property of the material. In the given scenario, thermal equilibrium is reached when the solid and the fluid reach the same temperature. We know that the initial temperature of the solid is 70°C, while the initial temperature of the fluid is 20°C. Both the solid and the fluid exchange heat until they reach the final temperature of 30°C. Since the solid undergoes a greater temperature change compared to the fluid (from 70°C to 30°C), it means that it requires more heat energy per gram to change its temperature. Therefore, the specific heat of the solid is more than that of the fluid. Hence, the correct answer is 3) is more than that of the fluid. |
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