Answer to Question #74445 in General Chemistry for Lilit

General Chemistry

Question #74445

What is the specific heat (in J/(gram*oC)) of a substance if it takes 5400. Joules to heat 35g from 15 oC to 50. oC? Remember to apply significant figures. Note that some numbers have decimal points.

Expert's answer

Answer:
Specific heat is defined as the amount of heat per unit mass needed to increase the temperature by
one degree Celsius (or by 1 Kelvin).
Q = mcΔT
Rearrange and solve for C:
C = Q/m ΔT =5400J/35g x (50 – 15) oC =5400/ 1225 = 4.4 J/(gram*oC

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24.03.18, 13:26

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Lilit

23.03.18, 22:55

How many atoms are in 1.50 moles of fluorine gas?

Lilit

23.03.18, 22:53

What is the mass percent of carbon in oxalic acid, H2C2O4?

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