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Why are foam cups used for both hot and cold drinks?
Foam - styrofoam is an excellent insulator. With a hot drink - you want it to remain hot - so you do NOT want heat to move out of the drink to the cooler outside. The styrofoam vastly reduces this heat flow. With a cold drink, the reverse is true. You want it to remain cold so you do not want heat to move from your hand or the outside atmosphere into the drink. The styrofoam vastly reduces this heat flow.
Whether plastic foam which contains pockets of air would be a good conductor or a good insulator.?
Because it fills heat slowly
Why does foam form?
By the formation of ethanol + ethanoic acid gives ester...Sodium or potassium salt f high carboxylic acid
What is the effect of foaming in fermentation?
foam reduces the heat transfer rate and aeration rate in any of the aerobic reactions as it is vital for cells to grow..
Is plastic a good insulator of heat?
yes i think A2: No, Not in Solid form. It is a Very Good insulator If sprayed into closed-cell foam or spun into fabric.
What will insulate better a foam or paper?
foam has better heat retention
How does foam turn sound into heat?
Sound is a vibration travelling through the air. When it hits foam, it causes the foam to vibrate, which in turn causes friction. The friction causes heat.
Can you machine dry a foam pillow?
No. Heat will melt the foam and possibly cause a fire
Is a foam cup A good conductor of heat?
It is a good insulator of heat :)
How is a foam coffee cup a good insulator?
The foam contains air, which is a poor conductor of heat.
How does the foam reduce heat loss?
Foam contains pockets of trapped air which prevents conduction.
Why does putting foam in a gap in a cavity wall keep a house warmer?
Foam will block heat from escaping.
How does plastic foam reduc heat loss?
Plastic foam consists of bubbles containing air or gas. Those bubbles are poor conductors of heat, and reduce the transfer of heat from warmer to cooler areas.
Why do you use a foam cup instead of a beaker in an experiment?
foam cup is a poor conductor of heat! haha;] msg me!!
Why foam is used for insulation?
Foam can be a good insulator because it contains a lot of open gas spaces interrupted by fairly thin walls. The solid portions of the foam prevent much convection (air moving around carrying heat with it). Gas tends to be a lousy heat conductor, so all those air bubbles make the foam a poor conductor of heat - most of the conducted heat has to to travel through the limited solid structure of the foam (not much cross section for conduction).
Why does metal feel cooler than foam?
Metals are good heat conductors, so the extra heat is drawn away from the warmer area (your hand) to the cooler areas. Foam is a heat insulator, so the heat won't travel away as fast.
Can you dry a foam pillow in amachine dryer?
I wouldnt. The heat would cause the foam to melt and possibly catch fire
