How much energy is required to heat an iron nail with a mass of 25.5 grams from 65°C until it becomes red hot at 720°C?
1 answer:
Answer:
Explanation:
We can use the relation
Q =mcΔθ
to find the energy required to heat the iron nail, where Q is the heat energy required, m is the mass of the nail and Δθ is change in temperature and c is heat capacity of the iron nail.
Also, from the question,
c = 0.4494J/g°C
Δθ=720 - 65 = 655°C
By substitution
Hence the energy required to heat the iron nail is 7506.1035J
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