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what is the specific heat of a substance if 1560 cal are required to raise the temperature of a 312-g sample by 15°C?
A) 0.033 cal/g°c
B) 0.33 cal/g°c
C) 0.99 cal/g°c
D) 1.33 cal/g°c

Respuesta :

kenmyna
The specific heat capacity  the substance is calculated  using  the below formula

Q(heat) = Mc delta T
Q =1560  cal
m(mass) 312 g
delta T (change in temperature ) = 15 c
C= specific heat capacity=?

by making c the subject of the formula 
c=Q/m delta T
= 1560  cal/ 312g x 15 c = 0.33 cal/g/c (answer B)


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