Pressure is halved when ONLY volume is doubled (n and T are constant).
Remember the General Gas Law:
p.V = n.R.T(in which R=general gas constant)
If you double the pressure of a sample of gas at a constant temperature, the volume is halved.
PV=nRT, where P=pressure, V=volume, n=number of moles, R=rate constant, and T=temp in Kelvin
If the temp stays the same then nRt is the same for both pressures and volumes.
Therefore P1 x V1 = P2 x V2.
For example, let's say the initial pressure (P1) is 1 ATM and the initial volume (V1) is 1 liter. Then the final pressure (P2) would be 2 ATM and the final volume (V2) would be 0.5 liters.
If you double the pressure you halve the volume, so the ration is 1/2
For the same amount (and temperature) double the pressure means half the volume.
the pressure is reduced by 1/2
if kelvin temp is halved, the volume is halved if pressure is constant.
Increasing the temperature the number of particles remain constant and the pressure increase.
At a constant volume the pressure increase.
In a closed system with constant pressure and no input or output of heat, the gas temperature will remain constant. In that same system, if the pressure is increased, then the gas temperature will also increase. If pressure is decreased, then the gas temperature will decrease.
Pressure will decrease with (because it is inversely proportianal to) volume, if (and only if!) temperature is held constant.
if kelvin temp is halved, the volume is halved if pressure is constant.
The pressure is decreased to 50 %.
The initial pressure is halved. Use Boyle's law that relates pressure & volume at a constant temperature. P1V1 = P2V2 In this case the V1(initial volume) is doubled so V2 = 2V1 P2 = P1V1/V2 = P1V1/2V1 P2 = (1/2)*P1
At constant temperature if the volume of a gas decreses what should I do now
Increasing the temperature the number of particles remain constant and the pressure increase.
Temperature will be increase
At a constant volume the pressure increase.
If the temperature of the gas is decreasing, then in order to maintain constant pressure, you would have to compress it in volume.
When the temperature of a gas is increased at a constant pressure, its volume increases. When the temperature of a gas is devreased at constnt pressure, its volume decreases.
When the Temperature increases, so does the Pressure.
In a closed system with constant pressure and no input or output of heat, the gas temperature will remain constant. In that same system, if the pressure is increased, then the gas temperature will also increase. If pressure is decreased, then the gas temperature will decrease.
The volume increases.