Physics, 30.11.2019 05:31 priscillarios30
If a beaker of water is placed under a broiler so that the heating coil is above the beaker. it is observed that only the surface layer boils. the water at the bottom of the beaker remains close to the initial temperature of the water. which of the following statements is the most reasonable conclusion to be drawn from these observations?
a) water is a poor conductor of heat.
b) the sample must contain impurities.
c) water is easily heated by radiation.
d) water exhibits anomalous thermal behavior.
e) the molecular motion in the sample is not random.
Answers: 1
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6–48 bananas are to be cooled from 24 to 138c at a rate of 215 kg/h by a refrigeration system. the power input to the refrigerator is 1.4 kw. determine the rate of cooling, in kj/ min, and the cop of the refrigerator. the specific heat of banana above freezing is 3.35 kj/kg·8c.
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If a beaker of water is placed under a broiler so that the heating coil is above the beaker. it is o...
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