0
What else can I help you with?
Is gas or a vacuum a better insulator?
A vacuum is a better insulator than gas because there are no particles in a vacuum to transfer heat through conduction or convection. Gas molecules can transfer heat through conduction and convection, making them less effective as insulators compared to a vacuum.
Why does convection not happen in a vacuum?
Convection requires a medium, such as a gas or liquid, to transfer heat through the motion of the medium itself. In a vacuum, there is no medium to carry the heat, so convection cannot occur. Heat transfer in a vacuum primarily occurs through radiation.
Why conduction can't occur in a vacuum?
Conduction requires the presence of a medium such as solid, liquid, or gas for heat transfer to occur. In a vacuum, there are no particles to transfer heat energy through collisions, so conduction cannot take place. Heat can only be transferred in a vacuum through radiation.
Does conduction work in vacuum?
No, conduction does not work in a vacuum because it requires a medium, such as a solid, liquid, or gas, for the transfer of heat. In a vacuum, there are no particles to transfer heat through direct contact, so conduction is not possible.
What two types of heat transfer can't occur in a vacuum or in space?
Conduction and convection cannot occur in a vacuum or in space because they both require a medium, such as a solid, liquid, or gas, for heat transfer to take place. In a vacuum or in space, heat can only be transferred through radiation, which does not require a medium.
Does a gas escape through a tiny opening into a vacuum during effusion?
Yes, a gas can escape through a tiny opening into a vacuum during effusion. Effusion is the process by which gas molecules pass through a small opening into a vacuum due to their random motion. This happens because of the difference in pressure between the gas inside and the vacuum outside.
What is the difference between conduction and thermal radiation in terms of heat transfer?
Conduction is the transfer of heat through direct contact between objects, while thermal radiation is the transfer of heat through electromagnetic waves. Conduction requires a medium, such as a solid, liquid, or gas, while thermal radiation can occur through a vacuum.
What substance which a wave move through is called?
The substance through which a wave moves is called a medium. This can be a solid, liquid, gas, or even a vacuum. Waves transfer energy through the medium without actually displacing the particles of the medium.
Heat passes through a gas by what method?
Heat can pass through a gas by conduction, convection, or radiation. Conduction is the direct transfer of heat through molecular collisions, convection is the transfer of heat through the movement of the gas itself, and radiation is the transfer of heat through electromagnetic waves.
Does radiation require a heated liquid to transfer energy?
No, radiation does not require a heated liquid to transfer energy. Radiation can transfer energy through electromagnetic waves, such as ultraviolet light or x-rays, without the need for a medium like a liquid.
Does radiation and convection need particles of matter?
No, radiation does not require particles of matter as it can travel through a vacuum. Convection, on the other hand, does involve the transfer of heat through the actual movement of particles, such as in a gas or liquid.
What do you call the transfer of thermal energy as waves that can involve energy transfer through matter or across empty space?
Heat is the transfer of thermal energy.If it is across empty space, then it's radiated heat.If through matter, then heat conduction.There is also convection, which is gas molecules gaining the heat energy, then the gas moves around, carrying the heat with it.
