Why does a can collapse when a vacuum pump removes air from the can?
The unbalanced outside force from atmospheric pressure crushes the can
. measured at constant temperature and pressure.
Why does a can collapse when a vacuum pump removes air from the can Brainly?
due to the external atmospheric pressure
. initially the pressure inside the can is balanced by the atmospheric pressure. But as the air is removed from inside, the external pressure dominates.
Why would a can collapse when a vacuum pump removes air from the can?
Why does a can collapse when a vacuum pump removes air from the can? a.
The inside and outside forces balance out and crush the can
. … The vacuum pump creates a force that crushes the can.
What happens to the volume of a gas during compression such as a when a balloon is squeezed?
During compression, the volume (V) of a
gas decreases
. When this happens, the pressure (P) of the gas increases if the number of moles (n) of gas remains constant. If you keep the pressure constant, reducing the temperature (T) also causes the gas to compress.
What happens to the pressure inside a flexible container filled with gas if the volume of the container is reduced by squeezing it?
Volume. Pressure is also affected by the volume of the container. If the volume of a container is decreased,
the gas molecules have less space in which to move around
. As a result, they will strike the walls of the container more often and the pressure increases.
What does the constant bombardment of gas molecules against the inside of a container produce?
The constant bombardment of gas molecules against the inside walls of a container produces
Pressure
. Explanation: Pressure is defined as Force per unit Area. … Increase in temperature cause to increase the Kinetic Energy of molecules, Hence, the rate of collisions increases resulting in increasing the pressure.
What is STP in Torr?
Standard Temperature and Pressure. Standard temperature is equal to 0 °C, which is 273.15 K. Standard Pressure is 1 Atm, 101.3kPa or
760 mmHg
or torr. STP is the “standard” conditions often used for measuring gas density and volume.
What happens when you put a marshmallow in a vacuum?
By putting marshmallows in a jar or bottle and using the vacuum pump,
you can remove gas around the marshmallows
. The gas in the bubbles keeps pushing outward as less and less gas is available around the marshmallows to push back. The gas bubbles expand and the marshmallow puffs up.
What collapses the marshmallow when the vacuum is opened?
Under normal conditions,
molecules of air from the atmosphere
(called atmospheric pressure) are pushing on the outside of the marshmallow. When the vacuum packer removes the air that was once pushing on the outside of the marshmallow, the air trapped inside the marshmallow pushes out (expands) causing it to get larger.
Which gas law is demonstrated with the peeps in the vacuum chamber?
At first the marshmallows inflate, as air trapped inside the marshmallows expands, demonstrating
Boyle's law
that volume increases as pressure decreases. Whole bag can be “inflated” to fill entire vacuum chamber.
What will happen if you press the balloon?
By squeezing the balloon,
you reduce the space the gas particles can occupy
. As the particles are pushed a bit closer together, they collide with more, so the pressure from the moving gas particles increases. … According to Boyle's Law, the volume of a fixed amount of gas decreases as its pressure increases.
Is Boyle's Law valid at very high temperatures?
Answer: Boyle's law states the inverse relationship between pressure and volume of a gas when the temperature is held constant. … At an extremely
high temperature the gases in question will turn to plasma
. Boyle's law works, however, as long as the temperature range allows the gas to remain a gas.
How gas is compressed to liquid?
A gas can be converted into a liquid
by increasing the pressure & decreasing temperature
. So that the condensation occurs. You must also make the molecules closer so that it is a phase change from a gas to liquid. … In liquids, the molecules are very near than that of gases.
Does decreasing volume increase speed?
If the temperature is increased, the average speed and kinetic energy of the gas molecules increase. … If the gas volume is decreased, the
container wall area decreases
and the molecule-wall collision frequency increases, both of which increase the pressure exerted by the gas (Figure 1).
Why must a gas be kept in a closed container?
Heating a gas increases
the kinetic energy of the particles, causing the gas to expand. In order to keep the pressure constant, the volume of the container must be increased when a gas is heated. This law explains why it is an important safety rule that you should never heat a closed container.
Does volume change from liquid to gas?
The change from solid to liquid usually does not significantly change the volume of a substance. However, the change from a liquid to
a gas significantly increases the volume of a substance
, by a factor of 1,000 or more. Figure 8.2.
