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What is the change of a substance from a solid directly to gas?
The process is called sublimation. Solids can turn directly into gases, and gases can turn directly into solid without ever being a liquid. Carbon dioxide (dry ice) is a common example of this. Other examples are mothballs, solid air fresheners (Air Wick), and iodine.
Does adding salt to ice lower its temperature and make it colder?
Yes, adding salt to ice lowers its temperature and makes it colder. This is because salt disrupts the normal freezing process of water, causing the ice to melt and absorb heat from its surroundings, making it colder.
How does adding salt to ice make it colder?
When salt is added to ice, it lowers the freezing point of the ice, causing it to melt. This melting process requires energy, which is taken from the surroundings, making the ice colder.
Why does adding salt to ice make it colder?
Adding salt to ice lowers the freezing point of water, causing the ice to melt. This process requires energy, which is absorbed from the surroundings, making the ice colder.
Why does adding salt to ice make it colder in chemistry?
Adding salt to ice lowers the freezing point of water, causing the ice to melt. This process requires energy, which is taken from the surroundings, making the ice colder.
Which process could make a snowbank colder?
The process of sublimation could make a snowbank colder. Sublimation is when a solid turns directly into a gas without passing through the liquid phase, which requires energy in the form of heat. As the snow sublimes, it absorbs heat energy from its surroundings, making the remaining snowbank colder.
What is the change of a substance from a solid directly to gas?
The process is called sublimation. Solids can turn directly into gases, and gases can turn directly into solid without ever being a liquid. Carbon dioxide (dry ice) is a common example of this. Other examples are mothballs, solid air fresheners (Air Wick), and iodine.
Is heat lost gained or absorbed during sublimation?
Sublimation of a substance, for example, of frozen carbon dioxide or dry ice, involves the substance's absorbing heat energy from its surroundings. Hence, the dry ice itself gains the energy needed to change from solid to gas, and the surroundings lose the energy, and indeed are perceived as colder. Sublimation of a substance, for example, of frozen carbon dioxide or dry ice, involves the substance's absorbing heat energy from its surroundings. Hence, the dry ice itself gains the energy needed to change from solid to gas, and the surroundings lose the energy, and indeed are perceived as colder.
Is water vapour condensing an exothermic process?
Yes. Condensation would be going from gas to liquid. That means it gets colder. Temperature is a measure of energy. So the colder it is, the less energy. If it gets colder, it looses energy. Loosing energy is exothermic.
The process of birds flying from colder to warmer regions?
It's called migration.
When temperatures near absolute zero what process causes Atoms to begin to clump?
Condensate is when temperatures are near absolute zero and the process causes atoms to begin to clump. When the temperatures gets colder and colder, the atoms aren't able to move.
If hot water is added to cold water and the cold water heats up what is this process called?
This process is called convection. Convection is the transfer of heat through the movement of fluids, such as water, as warmer fluid rises and colder fluid sinks.
Does adding salt to ice lower its temperature and make it colder?
Yes, adding salt to ice lowers its temperature and makes it colder. This is because salt disrupts the normal freezing process of water, causing the ice to melt and absorb heat from its surroundings, making it colder.
Why does dry ice last longer when salt is sprinkled on it?
Sprinkling salt on dry ice can help it last longer by lowering the temperature at which the dry ice sublimates. The salt lowers the freezing point of the surrounding moisture on the dry ice, creating a icy slush layer that insulates the dry ice and slows down the sublimation process.
How does adding salt to ice make it colder?
When salt is added to ice, it lowers the freezing point of the ice, causing it to melt. This melting process requires energy, which is taken from the surroundings, making the ice colder.
Why does adding salt to ice make it colder?
Adding salt to ice lowers the freezing point of water, causing the ice to melt. This process requires energy, which is absorbed from the surroundings, making the ice colder.
Why does humidity make it feel colder?
Humidity makes it feel colder because high levels of moisture in the air can prevent sweat from evaporating off your skin efficiently. This slows down the body's natural cooling process, making you feel colder than you would in drier air.
