Question

calculate the average kinetic energy of oxygen molecules at 0 degree Celsius​

Answer 1

Answer:

The average kinetic energy of the molecules is 5.66 × 10⁻²¹ J. According to Kinetic Molecular Theory, the average kinetic energy of gas molecules is a function only of temperature.

Answer 2

The kinetic energy of molecules is $5.6511\times10^{-21}\ J$

Explanation:

Given that,

Temperature = 0°C = 273 K

According to Kinetic Molecular Theory, the average kinetic energy of gas molecules is a function only of temperature.

We need to calculate the kinetic energy of molecules

Using formula of energy

$K.E = \dfrac{3}{2}kT$

Where, T = temperature

k = Boltzmann constant

Put the value into the formula

$K.E=\dfrac{3}{2}\times1.38\times10^{-23}\times273$

$K.E=5.6511\times10^{-21}\ J$

Hence,  The kinetic energy of molecules is $5.6511\times10^{-21}\ J$

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Topic : Average kinetic energy

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