0
The amount of energy released by one kilogram of a substance at its freezing point?
Wiki User
∙ 11y ago
Heat of Fusion
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
What is the density of 5 kilograms of cotton?
The same as the density of 1 kilogram, or 1/10 kilogram, or whatever. Density is not a property that depends on the amount of a substance.
Why do we find it useful to have two units of the amount of substance the kilogram and mole?
When we are concerned with the number of particles than we use Mole as the unit of amount of substance because one mole of a substance contains the equal number of particles (i.e., 6.022×10^-23)Butin case when we are concerned quantity of matter we use the unit Kilogram.
What is a latent heat energy levels?
Latent heat- the amount of heat required by a system/ substance to change phase. It's also heat absorbed or radiated during a change of phase at a constant temperature and pressure.
Does the amount of water change the boiling or freezing point of water?
No, quantity does not influence any temperature like boiling or freezing points of any substance.
How much mass is a kilogram?
That completely depends on two things -- whatliquid substance you have, and how much of it you have. For example, if it's pure water and you have one liter of it, then its mass is very close to 1 kilogram. If you have only one-half liter of it, then its mass is one-half kilogram, but if you replace the water with mercury, then its mass is 6.8 kilograms. So you see, it depends on the substance, and the amount of it.
The amount of heat needed to melt one kilogram of a substance?
heat of fusion
What is the SI base unit for the amount of substance?
The SI base unit for the amount of substance is the mole (mol).
What is the density of 5 kilograms of cotton?
The same as the density of 1 kilogram, or 1/10 kilogram, or whatever. Density is not a property that depends on the amount of a substance.
Why do you found it useful to have two units for the amount of substance the kilograms and the mole?
Actually, the kilogram and the mole measure two quite different things. The kilogram is a unit of mass. The mole is a unit of amount of substance, in the sense of the amount of atoms or molecules (in multiples of Avogadro's number). The same amount of kilograms can have varying amounts of moles, for different substances.
What is the amount of energy required to raise the temperature of 1 kilograms of a substance by 1 kelvin is called?
Specific heat is the amount of heat needed to melt one kilogram of a substance...heat of fusion
Why do we find it useful to have two units of the amount of substance the kilogram and mole?
When we are concerned with the number of particles than we use Mole as the unit of amount of substance because one mole of a substance contains the equal number of particles (i.e., 6.022×10^-23)Butin case when we are concerned quantity of matter we use the unit Kilogram.
What would happen to the freezing point of the substance that you worked with if there was twice as much liquid in the test tube?
Nothing. The freezing point depends on the molecular structure, not the volume of the substance. It will take a longer time to freeze twice the amount of liquid, but the freezing point remains the same.
How can freezing and fire both be exothermic reactions?
Freezing is not a chemical reaction, it is a phase change. There is a certain amount of heat that is required to liquefy any substance, and that heat can be recovered, so in that sense, you can extract heat from the process of freezing. This is quite different from the way that heat that is released by a fire, but in some sense both are exothermic processes.
What is a latent heat energy levels?
Latent heat- the amount of heat required by a system/ substance to change phase. It's also heat absorbed or radiated during a change of phase at a constant temperature and pressure.
What is the Freezing point of cider?
Cider is not a standard product. In fact in some countries it is a non-alcoolic drink in others it contains alcohol. Any substance mixed with water lowers its freezing point [from that of water] and the extent of that shift depends on the amount of the substance.
Does the amount of water change the boiling or freezing point of water?
No, quantity does not influence any temperature like boiling or freezing points of any substance.
How much mass is a kilogram?
That completely depends on two things -- whatliquid substance you have, and how much of it you have. For example, if it's pure water and you have one liter of it, then its mass is very close to 1 kilogram. If you have only one-half liter of it, then its mass is one-half kilogram, but if you replace the water with mercury, then its mass is 6.8 kilograms. So you see, it depends on the substance, and the amount of it.
