JAMB Physics 2009 Objective — Question 22
Question 22 of 50 from the Joint Admissions and Matriculation Board (JAMB) Physics 2009 Objective paper, with the correct answer and a full explanation.
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22. A block of aluminium is heated electrically by a 25W heater. If the temperature rises by 10°C in 5 minutes, the heat capacity of the aluminium is
- A. 850JK⁻¹
- B. 750JK⁻¹Correct
- C. 650JK⁻¹
- D. 500JK⁻¹
Explanation
P x t = CΔθ. 25 x 300 = C x 10, so C = 750 JK⁻¹.
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