The average kinetic energy of a gas molecule is measured to be

PHYSICS · Single correct · A Level · Physics · Further mechanics and thermal physics · Further mechanics and thermal physics

Problem

The average kinetic energy of a gas molecule is measured to be 6.21×10−21 J6.21\times10^{-21}\,\text{J}. Using k=1.38×10−23 J K−1k = 1.38\times10^{-23}\,\text{J K}^{-1}, determine the temperature of the gas. (a) 4.5×102 K4.5\times10^{2}\,\text{K} (b) 6.75×102 K6.75\times10^{2}\,\text{K} (c) 3.0×102 K3.0\times10^{2}\,\text{K} (d) 9.0×102 K9.0\times10^{2}\,\text{K}

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