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An energy of 12.6 eV is equal to...

An energy of 12.6 eV is equal to

A

`0.518xx10^(-25)"kcal"`

B

`6.04xx10^(-25)"kWh"`

C

`2.17xx10^(-10)"J"`

D

`2.17xx10^(-15)"kN-m"`

Text Solution

Verified by Experts

The correct Answer is:
B
E= 13.6 eV
`= 13.6 xx 1.6 xx 10^(-19)J (or W-s)`
`2.176xx10^(-19)W-s`
`= ( 21.76xx10^(-19))/(1000xx60xx60)kW-h`
`6.04xx10^(-25)kW-h`
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