# chemistry

3960 J of heat are added to a 27.6 g sample
of iron at 25

C. What is the ﬁnal temperature of the iron? The speciﬁc heat of iron is
0.449 J/g · K.
Answer in units of K

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1. 1)Convert 25* Celsius to Kelvin.
Celsius + 273.15 = Kelvin

Plug the given numbers in this formula and solve for final temperature.
q = mcΔT

where
q = heat energy
m = mass
c = specific heat
ΔT = change in temperature = final temperature - initial temperature

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2. 21

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