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The volume will increase as the piston moves downward. If the cylinder is sealed and the gas can not escape, the pressure in the cylinder will decrease. If the cylinder has a small opening as in a motor, the higher pressure outside will push in air that will mix with fuel to ignite when the spark plug is fired.
(Supv note: it is not possible to have negative pressure. You can have zero pressure but not a deficit.)
What else can I help you with?
If the volume of a cylinder-piston arrangement containing a gas is increased by a factor of eight and the temperature is doubled the pressure inside the piston will by a factor of?
The pressure inside the piston will increase by a factor of 4. According to the ideal gas law, pressure is directly proportional to the temperature and inversely proportional to the volume. Doubling the temperature will double the pressure, and increasing the volume by a factor of 8 will decrease the pressure by a factor of 8. The net effect is a pressure increase of 2 * 8 = 4.
What causes increase in pressure of a contained gas?
If the gas is confined by volume then the temperature must decrease. Given by the ideal gas equation pv=nrt on the left pressure time volume. If the volume is constant then the decrease in value of the left hand side of the equation has to compensated by a change in the right hand side. n= no of moles (a measure of the number of atoms present) R= gas constant so the only variable is T temperature which must decrease
What happens to the density of gas particles in a cylinder as the piston is raised?
As the piston is raised in a cylinder with gas particles, the volume available for the gas particles to occupy increases. This results in the gas particles spreading out and the density of the gas decreasing.
What will happen to pressure when gas expands and volume increases?
When a gas expands and its volume increases, the pressure of the gas will decrease. This is because pressure and volume are inversely proportional according to Boyle's Law, which states that the pressure of a gas is inversely proportional to its volume at constant temperature.
If the number of moles of gas decrease what happens to the volume?
If the number of moles of gas decreases, the volume of the gas will decrease as well, assuming constant temperature and pressure. This is described by Boyle's Law, which states that the volume of a gas is inversely proportional to the number of moles of gas when pressure and temperature are held constant.
In regards to a fluid rotary pump with all other factors equal does increasing piston size and lift decrease or increase pressure and why?
In general, increasing the diameter of a piston will only increase the volume of fluid the pump will move. Increasing the stroke, however, will increase pressure. The piston will rise higher in the cylinder to more fully compress the volume of fluid contained.
What happens to the volume of the gas if the pressure increased?
Volume decrease.
What happens when you press the noble gas?
The volume decrease.
How are temperature and air mass related?
For a given volume and pressure, the mass of the air contained in that volume (density) will decrease as the temperature increases.
What happens to density if the volume increase?
must decrease
What does lifting a piston on a cylinder of a gas show?
Lifting a piston on a cylinder of gas shows the relationship between volume and pressure of the gas. As the piston is lifted, the volume of the gas increases, which causes the pressure to decrease. This demonstrates Boyle's Law, which states that the pressure of a gas is inversely proportional to its volume when temperature is held constant.
What happens if mass is decreased and volume remains constant?
The density will decrease
What happens when pressure is increased on gases?
The volume decrease and the density increase.
What happens to the density as the volume increases?
If volume increases while mass remains the same, the density will decrease.
What happens to volume during phase changes?
Volume increases with increase in temperature, and decreases with decrease in temperature.
What happens when a piston moves down on the gas?
When a piston moves down in a gas-filled cylinder, the volume of the gas increases, leading to a decrease in pressure according to Boyle's Law, which states that pressure and volume are inversely related for a given amount of gas at constant temperature. If the temperature remains constant, the gas molecules spread out as the piston moves down, resulting in lower density. If the gas can absorb heat, it may also expand and do work on the piston, potentially increasing the temperature depending on the conditions.
What it the State of a gas when its volume increases and its pressure decreases?
When the volume of a gas increases and its pressure decreases, the state of the gas is expanding. This typically occurs when the gas is allowed to do work by pushing against a piston, which results in an increase in volume and a decrease in pressure.
