1.

It is given that E=(2.859)/lambda cal//mol The energy associated with radiation of wavelength 4xx10^(-5) m will be

Answer»

`71.5 kcal//mol`
`35.75kcal//mol`
`32.0 kcal//mol`
`7.15 kcal//mol`

Solution :GIVEN `E=(2.859)/lambdacal//mol`
`lambda=4XX10^(-7)`
`E=(2.859 cal//mol)/(4xx10^(-5)m)=71.5kcal//mol`


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