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600 J of heat is added to a monatomic ga...

`600 J` of heat is added to a monatomic gas in a process in which the gas performs a work of `150 J`. The molar heat capacity for the process is `KR`. Then find `K`.

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`DeltaU=600-150=450J`
`DeltaU=nCDeltaT`
`DeltaU=nC_(v)DeltaT`
`(DeltaQ)/(DeltaU)=(C )/(C_(v))`
`C=(4)/(3)C_(v)=2R`
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