Which water would you use to make salt dissolve the slowest?
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The given question is incomplete. The complete question is as follows.
A picture window has dimensions of 1.40 m, 2.50 m and is made of glass 6.00 mm thick. On a winter day, the outside temperature is , while the inside temperature is a comfortable
.
Part A
At what rate is heat being lost through the window by conduction?
Express your answer using three significant figures.
Part B
At what rate would heat be lost through the window if you covered it with a 0.750 mm-thick layer of paper (thermal conductivity 0.0500 W/m?K)?
Express your answer using three significant figures.
Explanation:
Formula for rate of heat transferred through single thick plane of glass is as follows.
=
=
When window is covered by paper then the rate of heat transfer is as follows.
=
=
Thus, we can conclude that heat lost is .