Which gas has the greatest kinetic energy at stp? which gas has the greatest kinetic energy at stp? he ne ar none of the above (all have the same kinetic

None of the given gases will show highest value of kinetic energy at STP.

According to the expression of average kinetic energy (E) of molecules of monoatomic gas,

Here, k is the Boltzmann's constant and T is the temperature of molecule.

All the gases i,e. Helium, Neon and Argon, are the noble gases which are highly stable and not show reaction in normal temperature and pressure.

Since, these gases are monoatomic and stable,  and conditions are specific to STP (Standard Temperature and Pressure). And kinetic energy is dependent to temperature, therefore these gases will not react at all, and we cannot obtain the average kinetic energy of these gases.

Thus, we can conclude that none of the given gases will show highest value of kinetic energy at STP.

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none of the above (all have the same kinetic energy.)

Explanation:

The average kinetic energy of the molecules of a monoatomic gas is given by

where

k is the Boltzmann's constant

T is the absolute temperature

All the gases listed in the question (Helium, Neon and Argon) are noble gases, so they do not react, therefore they are all monoatomic gases. So, since they are at the same temperature (all of them are at stp, which means they all have same temperature), and the kinetic energy depends only on the temperature, then they also have the same kinetic energy.

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the second one and the forth one are in the purple because they are opinions and the rest are in the yellow

explanation: