Respuesta :
1) I think all the gases have the same kinetic energy. Since kinetic energy depends only on temperature and since all are at STP. Kinetic energy is the energy possessed by a body or molecules in motion, for gases the kinetic energy increases with increase in temperature due to increased vibration of gas molecules.
2) Kinetic energy is given by the formula 1/2mv^2, where m is the mass and v is the velocity. All the gases have the same kinetic energy, mass and velocity are inversely proportional. Therefore, the most massive molecules will have the lowest average speed. H2 is the fastest, Xe is the slowest.
Xe, Cl2, O2, H2, in the order of increasing speed.
3) Two separate gases will have the same kinetic energy at the same temperature, but not the same average speeds. To have the same average speed the two gases will not be at the same temperature.
2) Kinetic energy is given by the formula 1/2mv^2, where m is the mass and v is the velocity. All the gases have the same kinetic energy, mass and velocity are inversely proportional. Therefore, the most massive molecules will have the lowest average speed. H2 is the fastest, Xe is the slowest.
Xe, Cl2, O2, H2, in the order of increasing speed.
3) Two separate gases will have the same kinetic energy at the same temperature, but not the same average speeds. To have the same average speed the two gases will not be at the same temperature.
The kinetic energy of gases is depends upon Temperature, pressure and molar mass of gas.
(1) Since, kinetic energy is depend upon the applied temperature and pressure. Here temperature and pressure is same(STP) for all gases. Hence kinetic energy of all gases will be same.
[tex]\rm \bold{H_2=Xe=Cl_2=O_2 }[/tex]
(2) The velocity of gases is inversely proportional to the molar mass of gases. Hence, the order will be
[tex]\rm \bold{H_2> O_2>Cl_2>Xe }[/tex]
(3) The average velocity of gases can be calculated by using the formula [tex]\rm \bold{\nu= \sqrt{\frac{3RT}{M} } }[/tex]
Where,
R- gas constant
T- temperature
M- molar mass of gas
Here, R and T is equal for both the gases. Since the molar mass of Oxygen is 16 times higher than Hydrogen.
Hence, velocity will be equal for both gases when temperature of Oxygen is 16 times higher than the Hydrogen.
Therefore we can conclude that the kinetic energy of gases is depends upon Temperature, pressure and molar mass of gas.
To know more about gas kinetic energy, refer to the link:
https://brainly.com/question/4320273?referrer=searchResults
