The number of molecules per unit volume in the sample is 20. The mass – McqOptions

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1.	The number of molecules per unit volume in the sample is 20. The mass of each molecule is 10^-20kg. The mean of speed squared is 4m²/s². What is the value of internal energy of the gas? Assume volume of container is 0.02m³.
A.	0.8*10<sup>-20</sup>J
B.	0.53*10<sup>-20</sup>J
C.	0.01*10<sup>-20</sup>J
D.	0.45*10<sup>-20</sup>J
Answer» B. 0.53*10<sup>-20</sup>J

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