Consider two equal 1000-cm3 cubes of copper. Initially separated, one has a temperature of 20∘ C and the other is at 100∘ C. They are then brought into contact along one wall but otherwise isolated from their surroundings. Estimate how long it will take for the two cubes to come into equilibrium.
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Given that,
Volume = 1000 cm³
Side = 10 cm
Temperature
Another temperature
We need to calculate the temperature T₀
Using formula of temperature for both cube
Where, a = side
T_{1} = Temperature
Another temperature
Put the value in to the formula
We need to calculate the heat rate
Using formula of heat rate
Put the value into the formula
We need to calculate the time take for the two cubes to come into equilibrium
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