Which defines the average kinetic energy of a system's particles?
odensity
pressure
temperature
o volume
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Explanation:

Average kinetic energy of a system of particles is given by .

where,

is the number of degrees of freedom of the particles.

is the boltzmann constant.

is the temperature.

For general gases,

For a given degrees of freedom,average kinetic energy is directly proportional to temperature.

So,the average kinetic energy depends on temperature.

2fe + 3h2so4 -> fe2(so4)3 + 3h2

it is necessary to balance equations in order to get the proper amount of reactants as well as products in order not to make a miscalculation.

you cannot change the subscripts as that would change the substance itself. for instance, diatomic elements such as h2 only have the subscript two when a gas. another example would be so4, if you were to change the subscript, the element would no longer be sulfate.

we change the coefficients instead as that only changes the number of molecules rather than the substance itself.

hope this !

explanation: it gains negative electrons, therefore becoming negatively charged. as charge cannot be created, nor destroyed, only transferred, this leaves the wool positive. now that they have opposite charges, the two items attract.