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If average kinetic energy of the molecules in the milk decreases what will happen to the milk?
the milk will get colder
What happen to the heat energy as a substance solifies?
what happen to the heat energy as a substance solidifies
During cooling the kinetic energy of the molecules falls. Why does this happen?
During cooling, the molecules lose kinetic energy because the temperature decreases, which reduces the average speed of the molecules. As the molecules slow down, they have less kinetic energy, resulting in a decrease in temperature.
What is the two ways of making evaporation happen faster?
To make evaporation happen faster, you can increase the temperature of the substance being evaporated, which provides more energy for the molecules to escape into the air. You can also increase air circulation around the substance to remove the evaporated molecules quickly, allowing more molecules to escape into the air.
What is happening when a metal's molecules release energy?
When a metal's molecules release energy, it means that the metal is undergoing a process called exothermic reaction, where energy is being released in the form of heat. This can happen when the metal is reacting with another substance or when it is being heated up.
What will happen to the atoms or molecules of a substance when it condenses?
When a substance condenses, it turns from a vapor (gas) into a liquid. When this occurs, the atoms/molecules lose some kinetic energy, and don't move as fast. They also become packed closer together, and take up less volume.
What will happen to the molecules or atoms of a substance when it melts?
the atoms will begin to giggle around more as they gain thermal energy.
What happen if you apply pressure on ice?
as ice will come in contact with the substance, it will come in direct contact with its heat thus increasing the kinetic energy of the molecules . this results in melting of ice.
Why does expansion happen?
Expansion can happen due to various reasons, such as increase in temperature, application of external pressure, addition of a reactant in a chemical reaction, or phase transition of a substance from solid to liquid or gas. These processes can lead to the atoms or molecules moving farther apart from each other, resulting in an expansion of the material.
Why has to happen to the water molecules before they can evaporate?
These molecules gain sufficient energy to escape into atmosphere.
Which property will eventually be the same for two objects after heat is transferred between them?
A wrong Idea:Often the concepts of heat and temperature are thought to be the same, but they are not.Perhaps the reason the two are usually and incorrectly thought to be the same is because as human beings on Earth everyday experience leads us to notice that when you heat something up, say like putting a pot of water on the stove, then the temperature of that something goes up. More heat, more temperature - they must be the same, right? Turns out, though, this is not true.Initial Definitions:Temperature is a number that is related to the average kinetic energy of the molecules of a substance. If temperature is measured in Kelvin degrees, then this number is directly proportional to the average kinetic energy of the molecules.Heat is a measurement of the total energy in a substance. That total energy is made up of not only of the kinetic energies of the molecules of the substance, but total energy is also made up of the potential energies of the molecules.More abut temperature:So, temperature is not energy. It is, though, a number that relates to one type of energy possessed by the molecules of a substance. Temperature directly relates to the kinetic energy of the molecules. The molecules have another type of energy besides kinetic, however; they have potential energy, also. Temperature readings do not tell you anything directly about this potential energy.Temperature can be measured in a variety of units. If you measure it in degrees Kelvin, then the temperature value is directly proportional to the average kinetic energy of the molecules in the substance. Notice we did not say that temperature is the kinetic energy. We said it is a number, if in degrees Kelvin, is proportional to the average kinetic energies of the molecules; that is, if you double the Kelvin temperature of a substance, you double the average kinetic energy of its molecules.More About Heat:Heat is energy.Heat is the total amount of energy possessed by the molecules in a piece of matter. This energy is both kinetic energy and potential energy.When heat, (i. e., energy), goes into a substance one of two things can happen:1. The substance can experience a raise in temperature. That is, the heat can be used to speed up the molecules of the substance. Since Kelvin temperature is directly proportional to the average kinetic energy of molecules in a substance, an factor increase in temperature causes an equal factor increase in the average kinetic energy of the molecules. And if the kinetic energy of the molecules increase, the speed of the molecules will increase, although these increases are not directly proportional. The kinetic energy of a body is proportional to the square of the speed of the body. 2. The substance can change state. For example, if the substance is ice, it can melt into water. Perhaps surprisingly, this change does not cause a raise in temperature. The moment before melting the average kinetic energy of the ice molecules is the same as the average kinetic energy of the water molecules a moment after melting. Although heat is absorbed by this change of state, the absorbed energy is not used to speed up the molecules. The energy is used to change the bonding between the molecules. Changing the manner in which the molecules bond to one another constitutes a change in potential energy. Heat comes in and there is an increase in the potential energy of the molecules. Their kinetic energy remains unchanged.So, when heat comes into a substance, energy comes into a substance. That energy can be used to increase the kinetic energy of the molecules, which would cause an increase in temperature. Or that heat could be used to increase the potential energy of the molecules causing a change in state that is not accompanied by an increase in temperature.my source (i give all credit to the website below for they are the ones who had this fancy answer): i hope that this was of some help to youhttp://id.mind.net/~zona/mstm/physics/mechanics/energy/heatAndTemperature/heatAndTemperature.html
What would happen to the average kinetic energy of the molecules of a gas sample if the temperature of the sample increased from 20C to 40C?
We will use that formula and see. Celsius converted to Kelvin.20o C = 293.15 Kelvin40o C = 313.15 KelvinKEavg = 3/2RTKE = 3/2(8.315 J/mol*K)(293.15 K)= 3656 Joules================The average kinetic energy increased about 8% in value.
