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fiasKO [112]
4 years ago
8

At which of the following temperatures is the average kinetic energy of the molecules of a substance the greatest?

Chemistry
2 answers:
WINSTONCH [101]4 years ago
6 0

D. The higher the temperature the more the atoms are shifting and shaking around

liubo4ka [24]4 years ago
3 0

Answer:  65.4^0C

Explanation:

Average kinetic energy is defined as the average of the kinetic energies of all the particles present in a system. It is determined by the equation:

K=\frac{3RT}{2}

R= gas constant

T= temperature in kelvin

From above, it is visible that kinetic energy is directly related to the temperature of the system. So, if temperature is more, average kinetic energy of the system is more and vice-versa.

a. 18^0C=18+273=291K

b. 20.4^0C=20.4+273=293.4K

c. 36.2^0C=36.2+273=309.2K

d. 65.4^0C=65.4+273=338.4K

Thus substance at 65.4^0C will have greatest kinetic energy.

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So, look up for electronegativity table

There's a continuum for deciding whether the bond is non-polar, polar, or ionic

If electronegativity difference is less than 0.4 it's non-polar

Explanation:

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Acetaminophen (C8H9NO2) is the active ingredient in many nonprescription pain relievers. Each tablet contains 500 mg of acetamin
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