JAMB 1980
A given quantity of heat increases the temperature of 150grams of water from 9°C to 15°C and increases the temperature of oil of 100grams from 9°C to 25°C. The ratio of the specific heat of oil to that of water is
A. 0.36
B. 0.46
C. 0.56
D. 0.76
E. 0.86
Correct Answer: Option C
Explanation
Heat lost = heat gained
(MCΔθ)o = (MCΔθ)w
100 x Co x (25 – 9) = 150 x Cw x (15 – 9)
1600Co = 900Cw
Divide both sides by 1600Cw
1600Co/1600Cw = 900Cw/1600Cw
Co/Cw = 0.56
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His Name is Tiamiyu Abdulbazeet Olawale. He is a student at the University of Ilorin studying Electrical and Electronics Engineering. He likes to give the latest updates about Nigeria and international institutions as he aims at helping people to lay their hands on the right information.
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