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What is happening to the molecules of a substance when they are heated or cooled?
When a substance is heated, the molecules gain kinetic energy and move faster, causing them to vibrate and collide more frequently, which increases the temperature of the substance. When a substance is cooled, the molecules lose kinetic energy and move slower, reducing the frequency of collisions and vibrations, which lowers the temperature of the substance.
Molecules in a substance slow down when a substance is?
Molecules in a substance slow down when a substance is cooled. Temperature is the measure of average kinetic energy of particles. Kinetic energy is the energy of motion. So when temperature decreases, the average kinetic energy decreases, so the energy of motion decreases, and the molecule slows down.
How do liquids act when they are cooled?
When liquids are cooled, their molecules slow down and move closer together, which causes them to contract or solidify, depending on the substance. This process is known as freezing or solidification. The specific behavior of a liquid when cooled will depend on its chemical composition and temperature.
When a pure substance is heated or cooled but does not change state the energy as heat is the what?
The energy as heat is being used to increase or decrease the temperature of the pure substance. This process involves changing the internal energy of the substance without causing a phase transition.
What is the amount of water required to cool water from 100deg to 40 deg?
The amount of water required to cool water from 100°C to 40°C will depend on the initial temperature of the water, the specific heat capacity of water, and the mass of the water being cooled. The formula to calculate this is q = mc(Tf-Ti), where q is the heat absorbed or released, m is the mass of the substance, c is the specific heat capacity of the substance, Tf is the final temperature, and Ti is the initial temperature.
What is happening to the molecules of a substance when they are heated or cooled?
When a substance is heated, the molecules gain kinetic energy and move faster, causing them to vibrate and collide more frequently, which increases the temperature of the substance. When a substance is cooled, the molecules lose kinetic energy and move slower, reducing the frequency of collisions and vibrations, which lowers the temperature of the substance.
What happens when gas cool down?
When cooled enough it will condense into a liquid. The required temperature changes with the substance.
Molecules in a substance slow down when a substance is?
Molecules in a substance slow down when a substance is cooled. Temperature is the measure of average kinetic energy of particles. Kinetic energy is the energy of motion. So when temperature decreases, the average kinetic energy decreases, so the energy of motion decreases, and the molecule slows down.
How do liquids act when they are cooled?
When liquids are cooled, their molecules slow down and move closer together, which causes them to contract or solidify, depending on the substance. This process is known as freezing or solidification. The specific behavior of a liquid when cooled will depend on its chemical composition and temperature.
What is the most probable reason for the failure of the Boyle's Law experiment?
Have you used a Bicycle pump? Ever touched it after pumping up the tyre? It was hot.. Boyle's law works at a constant temperature so the equipment would have to be cooled to the original temperature. Have you used a Bicycle pump? Ever touched it after pumping up the tyre? It was hot.. Boyle's law works at a constant temperature so the equipment would have to be cooled to the original temperature. Have you used a Bicycle pump? Ever touched it after pumping up the tyre? It was hot.. Boyle's law works at a constant temperature so the equipment would have to be cooled to the original temperature. At high temperatures (plasma state) it would fail. Have you used a Bicycle pump? Ever touched it after pumping up the tyre? It was hot.. Boyle's law works at a constant temperature so the equipment would have to be cooled to the original temperature. At high temperatures (plasma state) it would fail.
Does hot air cool faster then cool air?
The rate of cooling is affected by the temperature difference between the warm substance (air in this case) and the substance that is gaining that heat. If they are close in temperature there will not be as fast am exchange of heat. If the warm air and the cool air in the question are being cooled by transferring their heat to a substance at a set temperature, then the warmer air will cool faster, because it has a bigger temperature differential from the substance than does the cooler air.
What happens to the particle in a substance when it is cooled?
i. dont.know
What causes a substance to expand?
When a substance is heated, the kinetic energy of its molecules increases, causing them to move faster and further apart. This results in an expansion of the substance's volume. Conversely, when a substance is cooled, the molecules slow down and move closer together, causing the substance to contract.
What is thermal expanison?
Thermal expansion is the tendency of matter to change in volume in response to a change in temperature. When a substance is heated, its particles move faster and the material may expand. Conversely, when the substance is cooled, its particles slow down and the material may contract.
When a pure substance is heated or cooled but does not change state the energy as heat is the what?
The energy as heat is being used to increase or decrease the temperature of the pure substance. This process involves changing the internal energy of the substance without causing a phase transition.
What substance changes from a gas to a liquid?
Water is a substance that changes from a gas (water vapor) to a liquid (water) through a process called condensation. This change in state occurs when the temperature of the water vapor decreases, causing it to lose energy and form liquid water droplets.
What substance would gas change into if it was cooled?
a liquid then if cooled further it would turn into a solid a liquid then if cooled further it would turn into a solid
