yami pours powdered cocoa mix into milk and stirs it. then she microwaves the mixture for three minutes…
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?\n\nstirring powdered cocoa mix into milk\ntouching the warm handle of the cup\nrising steam from the cup of cocoa\npouring the cocoa mix into the milk
Answer
Brief Explanations:
- Convection is the transfer of heat through the movement of fluids (liquids or gases).
- When steam rises from the cup of cocoa, it is an example of convection. The warm, less - dense steam (a gas) moves upwards, and cooler air moves in to take its place. This is a classic example of a convection current.
- Stirring powdered cocoa into milk is a mixing process (not related to heat transfer by convection).
- Touching the warm handle of the cup is an example of conduction (heat transfer through direct contact).
- Pouring the cocoa mix into the milk is just a physical action of combining two substances (not related to heat transfer by convection).
Answer:
rising steam from the cup of cocoa.