Yami pours powdered cocoa mix into milk and stirs it. Then she microwaves the mixture for three minutes. When she takes the cup out, the handle is very warm. Steam rises from the cup, so she blows it before taking a sip. In which part of this scenario can convection be best observed?
A)stirring powdered cocoa mix into milk
B)touching the warm handle of the cup
C)rising steam from the cup of cocoa
D)blowing on the hot cocoa to cool it
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The correct option is (C) rising steam from the cup of cocoa
Convection is defined as the flow of energy to the outer surface due to the difference in the temperature in two different parts of a liquid. The hot water rises whereas cold water sinks.
Convection is the process of heat transfer that only occurs in liquid and gases only.
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