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Find the energy required to excite 1L od...

Find the energy required to excite `1L` od hydrogen gas at `1.0` nm and `298 K` to the first excited state of atomic hydrogen .The energy required for the dissacitation of `H-H` bond is `436 kJ mol^(-1)`

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The correct Answer is:
`10.93xx10^(14)"sec"^(-1)`
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