Concept explainers
(a)
Interpretation:
The body temperature of a student at the time the assignment was finished is to be calculated.
Concept introduction:
For a closed system, the formula to calculate internal energy of a system is:
…… (1)
Here,
(b)
Interpretation:
The mass lost from the body of the student through evaporation is to be calculated.
Concept introduction:
For an open system, the formula to calculate heat lost by a system is:
…… (2)
Here,
(c)
Interpretation:
The reasonability of the models in part (a) and (b) are to be explained along with the most appropriate explanation for the consumption of the metabolic energy produced in the student’s body.
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