Question
Download Solution PDF4 kg of solid material is heated from 15°C to 115°C with the addition of 750 kJ of heat in a furnace. What will be it specific heat?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
The quantity of heat required to raise the temperature of one gram of a substance by one Celsius degree is known as Specific Heat.
Mathematically,
Heat Energy is given by
Q = m c Δ T
where m is mass, c is specific heat and Δ T is temperature difference
Solution:
Heat energy given by the metal piece is 750 kJ
750 = m c ΔT
= 4 × c × (115−15)
750 = 4 × c × 100
∴ c = 1.875 kJ/kg °C
The correct answer is an option (1).
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