GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The Physics student mentioned in the previous item observed that despite accurate temperature readings, the
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a. The experimental setup (or iron nail and water) is not a closed system.
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b. The heat the appeared to have been lost was released to the surroundings.
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Only b
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a and b
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Explanation:
Detailed explanation-1: -The amount of heat gained or lost by a sample (q) can be calculated using the equation q = mcT, where m is the mass of the sample, c is the specific heat, and T is the temperature change.
Detailed explanation-2: -Connect the heater to the power supply and turn it on for ten minutes. Record the temperature of the metal block every minute. After ten minutes the temperature will still rise even though the heater has been turned off and then it will begin to cool.
Detailed explanation-3: -Q is the amount of supplied or subtracted heat (in joules), m is the mass of the sample, and T
There is 1 question to complete.