A) \[{{10}^{4}}\] J
B) \[{{10}^{3}}J\]
C) \[{{10}^{5}}\text{ }J\]
D) \[{{10}^{6}}J\]
Correct Answer: A
Solution :
| [a] \[P=\frac{\rho RT}{M}\] |
| \[4\times {{10}^{4}}=\frac{8}{4\times 1.6\times {{10}^{-27}}}~\,\times 8.314\,T\] |
| \[E\,\,=\,\,\frac{3}{2}\,PV\,=\,\frac{3}{2}\times 4\times {{10}^{4}}\,\times \frac{2}{8.4}\,=\,1.5\times {{10}^{4}}\] |
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