Yes, it is possible.
No, boiling water cools down at a non-constant rate. Initially, it cools down faster as the temperature difference between the water and the room decreases. As the water gets closer to room temperature, the rate of cooling slows down.
it can go up or down
The ice is at a constant temperature of 0°C as it melts. Once it has completely melted, the water's temperature will start to rise to equilibrium with the room.
What you need to know to work this out is that:- Moles of gases at standard temperature pressure (With P and T constant) are proportional to the volume they occupy, divided by their specific gas constant.
0.832
Assuming "Room Temperature" is fairly constant (i.e not fluctuating dramatically) and the sample of Mercury has had time to equilibriate with it's surroundings, then the temperature of the Mercury will be the same as "Room Temperature".. what ever that happens to be at the time.
A stability room is a device used to mantain constant (and pre - defined) conditions of humidity and temperature.
Yes, it is possible.
No, boiling water cools down at a non-constant rate. Initially, it cools down faster as the temperature difference between the water and the room decreases. As the water gets closer to room temperature, the rate of cooling slows down.
Generally 20-25 0C. For special measurements and instruments a room at constant temperature is needed.
it can go up or down
No. It cools at a rate proportional to the difference between its temperature and that of it's surrounding. The cooler it gets, the closer it will get to room temperature, and the cooling slows down.
The ice is at a constant temperature of 0°C as it melts. Once it has completely melted, the water's temperature will start to rise to equilibrium with the room.
What you need to know to work this out is that:- Moles of gases at standard temperature pressure (With P and T constant) are proportional to the volume they occupy, divided by their specific gas constant.
The independent variable.The independent variable is an excellent answer, for sure, but you might also considera constant variable, ie a variable whose value can not be changed once the experiment has begun, but can be changed in subsequent experiments.For instance, we want to determine the rate at which an ice cube melts at various room temperatures. The latent heat of liquefaction does not change for water (ice) no matter the room temperature, but the rate at which that heat will be absorbed by the ice cube does change depending on the amount of heat available in the room (the room temperature).So the latent heat of liquefaction is a constant, while the temperature of the room is a variable (because we can change it), but for each individual experiment the room temperature remains constant throughout, so it becomes a constant variable.
Actinium is a solid at room temperature.