The future temperature of the water depends upon the surrounding air's temperature. So if the air around the test tube is colder than 20 degrees, then the water will get colder. If the air temperature is warmer than 20 degrees then the water will get warmer.
well, the ice in it would melt, and the water would get warmer if it was in a hot climate,(a temperature warmer than the ice water) and if it was in a cold climate, (a temperature colder than the ice water) it would freeze or get colder.
An easy way to make water cold is to put it in the refrigerator. If this is not possible, adding colder water would make water colder. Actually, adding ice would make this process faster, as it is colder than cold water. And dry ice would make it cold even faster than ice (but dry ice is dangerous- be careful).
Since the salt makes water boil, get colder, and melt faster, salt water would be warmer in the summer and colder in the winter, but the salt would help, but not 100%, keep the water from freezing.
It depends were you are, generally it would stay colder if you left it in the water
The freezing temperature of water on the Celsius scale is 0 degrees. Five degrees colder than that would be -5 degrees Celsius.
The Earths surface would be much colder than it is.
Yes, rain is typically colder than hail because rain is liquid water, while hail is frozen water. Hail forms when raindrops are carried into colder regions of the atmosphere where they freeze, resulting in ice pellets that can fall to the ground.
The metal ball would travel faster through water at 15 degrees Celsius, as colder water has lower friction compared to warmer water. This results in less resistance for the ball, allowing it to move more easily through the water at a higher speed.
Yes. Condensation would be going from gas to liquid. That means it gets colder. Temperature is a measure of energy. So the colder it is, the less energy. If it gets colder, it looses energy. Loosing energy is exothermic.
The earth would be much colder. These are greenhouse gases.
You end up with water that is under pressure. Time would have no affect on the process.
Removing heat energy from a cup of water would cause the temperature of the water to decrease, eventually leading to it cooling down and possibly freezing if it reaches the freezing point.