A) \[3.4\times {{10}^{3}}J\]
B) \[2.97\times {{10}^{3}}J\]
C) \[1.2\times {{10}^{2}}J\]
D) \[0.66\times {{10}^{4}}J\]
Correct Answer: A
Solution :
\[E=\frac{l}{2}m{{v}^{-2}}\] \[=\frac{1}{2}M\left( \frac{3RT}{M} \right)\] \[E=\frac{3}{2}RT\] \[E=\frac{3}{2}\times 8.31\times 273\] \[E=3.4\times {{10}^{3}}J\]
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