When we say that aprocess occurred at constant pressure (p=const), we realy mean

Question

When we say that aprocess occurred at constant pressure (p=const), we realy meanthat

p = pex =const

was maintained throughout theprocess

When we say that aprocess occurred at constant pressure (p=const), we realy meanthat

A. The system wasplaced in contact with a volume reservoir, and thecondition

p = pex =const

was maintained throughout theprocess

B. The systempressure p remained constant and we cannot say anything about theexternal pressure pex C. The externalpressure remained constant D. The volumeremained constant.

Explanation / Answer

so for the question you asked we can say that for a constant pressure or in thermodynamics it is called isobaric process means here we really meant that the pressure is not changed through out the process in any means for example    if we use pv diagram to calucalute the work and when the pressure is made constant then the equation to calucalute the work becomes = integralpdv    since pis constant it gives that to directlycalucalute the sum or integration of change in volume in order to give work done. i.e the pressure is maintained constant so the option A ehat u said is Pexternal is and Pinternal are made constant.

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