What is the energy change when the temperature of 12.1 grams of solid nickel is decreased...

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Question

What is the energy change when the temperature of 12.1 grams of solid nickel is decreased from 35.9 °C to 23.0 °C?

Answer: Joules

Answer 1

Answer #1

The amount of heat energy removed for lowering the temperature from 35.9 °C to 23.0 °C is given by

q = mcT

where q = amount of heat removed

m = mass of nickel = 12.1 g

c = specific heat of nickel = 0.440 J/g⁰C

T = change in temperature = 12.9 ^oC

Hence q = 12.1 x 0.440 x 12.9

q = 68.68 J

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Answer 2

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