What determines the average kinetic energy of particles in a gas ?
2 answers:
<u>Answer:</u> Temperature of the substance determines the average kinetic energy of particles in a gas.
<u>Explanation:</u>
Average kinetic energy is defined as the average of all the kinetic energies of the particles in a system. It is a measure of temperature of the particles in a gas.
The equation used to calculate the average kinetic energy of the particles is given as:
where,
R = Gas constant
T = Temperature of the gas
= Avogadro's number
E = Average kinetic energy of the particles
As, temperature is directly related to the average kinetic energy of the gas. Thus, the temperature of the particles increases, the average kinetic energy of the particles also increases and vice-versa.
Thus, temperature of the substance determines the average kinetic energy of particles in a gas.
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In such a way, the attached file shows the Lewis dot structure, in which we can find two bonds between the two hydrogen atoms and the carbon one, and also, a double bond between carbon and oxygen.
The aforementioned is explained by bearing to mind the concept of octet, which states that elements in groups 4A, 5A, 6A and 7A are able to complete 8 valence electrons after bonding.
Thus, since carbon is in group 4A we infer it needs 4 more electrons to complete the octet, and that is achieved due to the 4 bonds it is having with the two hydrogen atoms and double bond with the oxygen atom.
In addition, since oxygen is in group 6A, we infer it needs two more electrons to complete its octet, which is attained via the double bond it has with the carbon atom. For hydrogen, however, it can complete one bond at maximum, because it is in group 1A, which means it can complete two valence electrons after bonding.
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