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An ideal gas expands while the pressure ...

An ideal gas expands while the pressure is kept constant. During the process, does heat flow into the gas or out of the gas? Justify you answer.

Text Solution

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The correct Answer is:
A
`p=` constant
`:.` `TpropV`
As the gas expands V increases. So, T also increase. Hence, `DeltaT` is positive. Therefore, in the expression.
`Q=nC_pDeltaT`
Q is positive.
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