As a rule of thumb, dry ice sublimates at the rate of 5-10 pounds every 24 hours.
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No, dry ice will not melt on contact with salt. In the first place, dry ice does not melt. It does not have a liquid phase under normal atmospheric pressure. It transforms from solid to gas, which is called sublimation. Dry ice sublimes, rather than melts. Secondly, salt has no effect on the sublimation of dry ice. Salt has an effect on frozen water, but it does not have an effect on frozen carbon dioxide. Salt is soluble in water, it is not soluble in carbon dioxide.
ice actually melts pretty fast on aluminum, it will probably take 15 minutes
it it can the part that hasent started melting
That's precisely what it's made of. "Regular" ice is made of solid water, also known as H2O. Dry ice is made of solid CO2. If you meant to ask that question backwards, solid CO2 is called dry ice because CO2 in its standard state at room temperature is a gas, unlike water, which is a liquid, therefore "dry ice" evaporates and leaves no liquid.
A hypothesis for ice cubes could be: If ice cubes are placed in warm water, then they will melt faster than if they are left at room temperature, because warmer temperatures increase the rate of melting in ice.
Liquid nitrogen or dry ice perhaps?
yes
yes, until it starts to melt. or its dry ice
Dry ice doesn't melt, it changes from a solid state, to a gas state, that's why it's called DRY ICE, there is no known way that it melts.
it all depends on the temperature. ice melts faster at higher temperatures
Dry ice only melts when it is under pressure of 5.1 atmospheres.
boiling water
because it does!
Dry ice doesn't melt. It sublimates at -78 0C, or -109 0F. Sublimation is a direct transition from a solid to a gas, skipping the liquid phase.
salt
Use modeling clay to shape a volcano, then fill it with water and when you are giving your presentation, drop dry ice in it, it will begin to make fog.
How much dry ice? Regardless, a signifigant amount to all of the dry ice will sublime (solid CO2 will not melt under any atmospheric circumstances) and some to all of the magna will solidify into igneous rock. The results are dependent on the quantity of dry ice.