AP EAMCET · PHYSICS · Kinetic Theory of Gases
A liquid of mass is kept warm in a vessel using an electric heater. The liquid is maintained at when the power supplied by the heater is and surrounding temperature is . As the heater is switched off, it took time for the temperature of the liquid to fall from to . The specific heat capacity of the liquid is
- A
- B
- C
- D
Answer & Solution
Correct Answer
(A)
Step-by-step Solution
Detailed explanation
The expression for the rate of heat flow is, dqdt=-kT-T0 Here T0=Surrounding temperature From first condition-| 30=-k57-27 ⇒ k=-1 Using second condition- dqdt=-kT-T0 but dqdt=msdTdt ∴ msdTdt=-k T-T0 Substitute the given values in the…
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