1.

Calculatethe wavelengthof the lightrequired to breakthe bondbetweentwo chlorine atomsin achlorinemolecule . The Cl-Cl andbondenergyis 243 kj mol^(-1) (n=6.6 xx 10^(34)J sC=3 xx 10^(8)ms^(-1) Avogadrons number=6.02xx 10^(23)mol^(-1) )

Answer»

`8.18 XX 10^(31)m`
`6.26 xx 10^(21) m`
`4.91 xx 10^(-7) m`
`4.14 xx 10^(6) m`

Answer :C


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