- #1
jtb93
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Homework Statement
A cubical cooler, 0.45 m on a side, has an R-value of 3.2 m2 K/W. The sides of the cooler are 0.030 m thick. The cooler is filled with water at a temperature of 2 degrees C and is placed in a room with a temperature of 19 degrees C. The heat capacity of water is 4190 J/kg K. How long does it take for the water to warm to 3 degrees C?
Homework Equations
Q/T=KA(T2-T1)/L
Q=cm(delta)T
The Attempt at a Solution
Q/T=(0.14)(0.453)(19-2)/0.45
also 6.5 W(4190)(19-2)m[/SUP][/SUP]
Correct answer is 5.9E4 s. My attempts got nothing close to that.
[mentor's note: edited to fix formatting]
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