Hey how would I solve this? The rear window of a van is coated with a layer of i
ID: 1674048 • Letter: H
Question
Hey how would I solve this? The rear window of a van is coated with a layer of ice at0°C. The density of ice is 917 kg/m3, and the latentheat of fusion of water is 3.35 x 105 J/kg. The driverof the van turns on the rear-window defroster, which operates at 12V and 28 A. The defroster directly heats an area of 0.62m2 of the rear window. What is the maximum thickness ofice above this area that the defroster can melt in 1.9minutes?Thank you! Hey how would I solve this? The rear window of a van is coated with a layer of ice at0°C. The density of ice is 917 kg/m3, and the latentheat of fusion of water is 3.35 x 105 J/kg. The driverof the van turns on the rear-window defroster, which operates at 12V and 28 A. The defroster directly heats an area of 0.62m2 of the rear window. What is the maximum thickness ofice above this area that the defroster can melt in 1.9minutes?
Thank you!
Explanation / Answer
The thickness of ice melted = volume of ice melted / Area = m / * A = Q / L **A ( Where Q = m L ) = Pt /LA ( Q = P t ) = V I t /LA = 12 * 28 * 1.9 * 60 / 3.35 x 105 * 917 *0.62 = 0.0002011 m = 0.2011 mm