A liquid has a specific heat capacity c. The rate of change in temperature of the liquid is R. The rate at which heat is transferred from the liquid is P. What is the mass of the liquid?
Correct answer: A. P/cR
- A. P/cR
- B. PR/c
- C. Pc/R
- D. cPR
Explanation
Since Q=mctAnd according to the question, Q=P, c=c, and t=RWhen we place the values in the equation making m the subjectm=P/cR
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About Thermal Equilibrium and Heat
Thermal equilibrium means that bodies in contact have the same temperature and no net heat flows between them. The topic distinguishes heat from temperature, uses the zeroth law of thermodynamics, and covers heat transfer, specific heat capacity, thermal expansion and the conditions for reaching equilibrium.
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