2. A container of water has been outdoors in cold weather until a 5.0-cm thick slab of ice has formed on its surface. The air above the ice is at -10°C. Data: kice = 1.7 W/m K Pice = 0.92 g/cm3 Lejce = 333 kJ/kg Assume that the walls of the container are Calculate the rate of formation of ice (in cm/hr) on the bottom surface of the slab. thermally insulating.
2. A container of water has been outdoors in cold weather until a 5.0-cm thick slab of ice has formed on its surface. The air above the ice is at -10°C. Data: kice = 1.7 W/m K Pice = 0.92 g/cm3 Lejce = 333 kJ/kg Assume that the walls of the container are Calculate the rate of formation of ice (in cm/hr) on the bottom surface of the slab. thermally insulating.
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Only #2 and how u got the answer please
Transcribed Image Text:For a composite rod like shown above in
Discussion Question 6, each section has length
0.75 m and a cross-sectional area 4 cm2.
a) Find the temperature at the midpoint of the
composite rod.
Suppose that the thermal conductivities of
wood and metal are kw =1 and km = 14, in
MKS units.
b) Find the rate of heat flow across the composite
rod.
2. A container of water has been outdoors in cold
weather until a 5.0-cm thick slab of ice has
formed on its surface. The air above the ice is
kice = 1.7 W/m K
Pice = 0.92 g/cm3
Laice = 333 kJ/kg
Data:
at -10°C.
Assume that the walls of the container are
Calculate the rate of formation of ice (in
cm/hr) on the bottom surface of the slab.
thermally insulating.
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