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An oxygen storage tank has a capacity of $0.05m^3$.The gas pressure is 100atm.Determine the total K.E of gas.

$\begin{array}{1 1}(A)\;0.5\times 10^6J\\(B)\;0.75\times 10^6J\\(C)\;1\times 10^6J\\(D)\;1.25\times 10^6J\end{array} $

1 Answer

Total K.E=$\large\frac{5}{2}$$PV$
$\quad\quad\;\;\;\;\;=\large\frac{5}{2}$$\times 100\times 10^5\times 0.05$
$\quad\quad\;\;\;\;\;=1.25\times 10^6J$
Hence (D) is the correct answer.
answered May 12, 2014 by sreemathi.v

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