It is correct because at constant temperature
kinetic energy of the gas remains the same
. Therefore, if gas expands at a constant temperature the kinetic energy of the molecules remains the same. … If the temperature of the gas increases the kinetic energy of the gas also increases.
What happens when a gas is expanded?
Heating a gas increases the kinetic energy of the particles
, causing the gas to expand. … Increasing temperature without increasing the volume available to accommodate the expanding gas means that pressure builds up inside the container and may cause it to explode.
When a gas expands at constant temperature Why does the pressure decrease?
, where R is the Reydberg Constant and T is the temperature. Therefore, at a constant temperature, the kinetic energy will also be the same. Therefore, when gas expands at a constant temperature,
pressure decreases as well as kinetic energy of the molecules will remain the same
.
Is gas is expanded at constant temperature?
The gas is
expanded at constant temperature
. So, volume increased. According to Boyle's law, pressure should decrease as both are inversely proportional to each other.
What happens at constant temperature?
Boiling and condensing processes
occur at constant temperature and are accompanied by a change of phase of the working fluid. Slow expansion and compression processes in equilibrium with constant temperature surroundings will be isothermal. Isothermal processes require heat or work transfer to or from the surroundings.
Which is not true in case of ideal gas?
Due to frequent collisions, speeds and direction of motion of molecules keeps on changing. Thus, all the
molecules in a sample of a gas do not have same speeds
.
What is the correct order of pressures?
Therefore, The correct order of pressures at given condition are
p1 > p2 > p3
.
What happens to work when gas expands in vacuum?
The point is,in a vacuum,there is
nothing that the gas can do work on
! Also,there is nothing that the gas has to overcome its pressure to expand,so the work it does in expanding is zero. … But in a vacuum there is no container,so the pressure is zero.
What gas expands the most with heat?
Originally Answered: which gas expands the most when thermally heated? The answer is that
the gas with the lowest heat capacity at constant pressure
, usually given the symbol CsubP .
What happens when the temperature of gas is decreased?
If you decrease the temperature of a fixed amount of gas at constant pressure,
the combined gas law reduces to Charles's law
. In this case, volume will also decrease.
What will happen to the pressure of a gas if it is expanded from 10 l to 20 l at constant temperature?
Pressure is inversely proportional to volume at constant temperature
, hence (a) is correct.
How much does gas expand with temperature?
Gasoline does expand and contract a little depending on its temperature. When gasoline rises from 60 to 75 degrees F, for instance, it
increases in volume by 1 percent
while the energy content remains the same.
Which is the most ideal gas?
The real gas that acts most like an ideal gas is
helium
. This is because helium, unlike most gases, exists as a single atom, which makes the van der Waals dispersion forces as low as possible. Another factor is that helium, like other noble gases, has a completely filled outer electron shell.
What is the relationship between temperature and pressure?
We find that
temperature and pressure are linearly related
, and if the temperature is on the kelvin scale, then P and T are directly proportional (again, when volume and moles of gas are held constant); if the temperature on the kelvin scale increases by a certain factor, the gas pressure increases by the same factor.
How do you find heat at constant temperature?
The heat capacity and the specific heat are related by C=cm or c=C/m. The mass m, specific heat c, change in temperature ΔT, and heat added (or subtracted) Q are related by the equation:
Q=mcΔT
. Values of specific heat are dependent on the properties and phase of a given substance.
What is the T in PV nRT?
PV = nRT is an equation used in chemistry called the ideal gas law equation. t = (
PV)/(nR
).
