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Calculate kinetic energy (in SI units) o...

Calculate kinetic energy (in SI units) of 4g. Of methane at `-73^@C`.

Text Solution

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n=No of moles of methane `(4g)/(16g"mol"^(-1))=0.25`mol
`R=8.314 J mol^(-1)K^(-1)`
`T=-73^(@)C+273=200K`
Kinetic energy `=3/2xx0.25molxx8.314Jmol^(-1)K^(-1)xx200K=623.6J`
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