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Calculate energy of one mole of photons ...

Calculate energy of one mole of photons of radiation whose frequency is `5xx10^(14)` Hz.

Text Solution

Verified by Experts

Energy (E) of one photon is given by the expression
E = hv
`h=6.626xx10^(-34)Js`
`V=5xx10^(14)s^(-1)`(given)
`E=(6.626xx10^(-34)Js)(5xx10^(14)s^(-1))`
`=3.313xx10^(-19)J`
Energy of one mole of photons
`=(3.313xx10^(-19)J)xx(6.022xx10^(23)"mol"^(-1)) `
`199.51kJ "mol"^(-1)`
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