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What else can I help you with?
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.
How do you calculate the freezing rate?
The freezing rate can be calculated by dividing the amount of substance frozen by the time it takes to freeze. For example, if 200 grams of water freeze in 10 minutes, the freezing rate would be 20 grams per minute.
Does the amount of water change the boiling or freezing point of water?
No, the amount of water does not change the boiling or freezing point of water. The boiling point of water is always 100°C (212°F) at sea level, and the freezing point is always 0°C (32°F). The boiling and freezing points are determined by the chemical properties of water, not the amount of water present.
What is the SI base unit for the amount of substance?
The mass is sometimes informally called the "amount of substance", though this is not very precise. The SI unit for mass is the kilogram.
WHAT IS HEAT OF TRANSFORMATION?
Heat of transformation is the amount of heat absorbed or released during a phase change of a substance, such as melting, freezing, vaporization, or condensation. It is the energy required to change the state of a substance without changing its temperature.
Does mass affect freezing point?
Well, I did an experiment in class on this question. We used different amounts lauric acid and it turned out that the freezing point was pretty much the same for all the samples. So, in all, the freezing point does not depend on the mass of a substance.
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.
What amount of heat needed to increase the temperature of a 1-kilogram substance by 1 and degC is known as the?
The amount of heat needed to increase the temperature of a 1-kilogram substance by 1 degree Celsius is known as the specific heat capacity of the substance. It is a measure of how much heat energy is required to raise the temperature of a given mass of the substance by one degree Celsius.
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.
The amount of heat needed to increase the temperature of one kilogram of substance by 1 and degc?
The amount of heat needed to increase the temperature of one kilogram of a substance by 1 degree Celsius is known as the specific heat capacity of the substance. It is measured in joules per kilogram per degree Celsius (J/kg°C). Different substances have different specific heat capacities due to their molecular structure and composition.
The amount of heat needed to melt one kilogram of a substance?
The amount of heat required to melt one kilogram of a substance is known as the heat of fusion or the latent heat of fusion. It represents the energy needed to change a solid into a liquid at its melting point without a change in temperature.
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.
Does freezing gain thermal energy?
Yes. When ice is converted to water, thermal energy is required. When the water is converted back to ice, the same amount of thermal energy is released.
