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How many joules of energy are required to raise the temperature of 20g of aluminum from 10 degrees C to 15 degrees C?
Wiki User
∙ 12y ago
Heat energy Q = mass x specific heat capacity x temperature change.
Q = m*c*delta T
Q = Joules
m = kg
c (aluminum) = 895.8 J/kg
delta T = degr.C temp. change
Answer: Q = (20/1000) x 895.8 x 5 = 89.58 Joules
(Specific heat capacity of aluminum is obtained by multiplying its specific heat of 0.214 with c of water which is 4186 J/kg = 0.214 x 4186 = 895.8 J/kg).
Wiki User
∙ 12y ago
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