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keemosabi
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Homework Statement
The temperature in an electric oven is 158°C. The temperature at the outer surface in the kitchen is 51°C. The oven (surface area = 1.8 m2) is insulated with material that has a thickness of 0.023 m and a thermal conductivity of 0.045 J/(s·m·°C).
(a) How much energy is used to operate the oven for 7 hours?
Homework Equations
Q = (k A deltaT time)/L
The Attempt at a Solution
k = .045
A = 1.8
deltaT = 107
time = 7
L = .023
I got 2637.78 but it says that's wrong. What did I do wrong?