approximately 40 seconds if it is at room temperature that is 25 degrees c at 298k
it doesnt
Ice cream at room temperature melts.
20 min
ice cream melts in the sun because when the heat of the sun get to the ice cream its starts to melt like ice.
Ice cream will melt faster than yogurt, as yogurt does not melt.
What is the external temperature? How insulated is the container the iced coffee is in? What is the ratio of coffee to ice? There are many factors here the greatest probably being the external temperature. Obviously if I leave my iced coffee outside in the winter it will take much longer to melt then it would in the summer.
It depends on your ice cream maker. If you use a gel canister model, 20 minutes. Longer and your ice cream starts to melt. An ice and salt ice cream freezer can take a bit longer. Compressor ice cream makers take between 35-40 minutes. For more on the different kinds of ice cream makers and how they work, see The Ice Cream Maker (link below).
no
which ice cream melts faster
depends on what ice cream it is... but if its normal whippy ice cream... then ice cream will melt faster
Pepper, on its own, will not melt ice.
It does melt.