A) \[7.9\times {{10}^{4}}K\]
B) \[3.5\times {{10}^{4}}K\]
C) \[5.8\times {{10}^{4}}K\]
D) \[14\times {{10}^{4}}K\]
Correct Answer: A
Solution :
According to kinetic interpretation of temperature \[K.E.=\left( \frac{1}{2}m{{v}^{2}} \right)=\frac{3}{2}kT.\] \[\Rightarrow 10.2\times 1.6\times {{10}^{-19}}=\frac{3}{2}\times (1.38\times {{10}^{-23}})T\] Þ T = 7.9 ´ 104K.
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