Question

Ideal Gas Law Experiment

Systemic Error: Volume of the Pressure Sensor: Presumably, there is a small volume of gas actually contained in our pressure sensor (or at the base of the syringe, etc.) at any particular time. What is the impact of this volume on each part of our experiment?

Answer 1

If some volume of the gas is left at any time in the pressure sensor or the base of the syringe then for the next successive experiment the amount of subtace will reduce by that volume as a result the pressure will increase because as per the Idol gas equation

PV= nRT

Whre P= pressure of the substance

V= volume of the substance

n = number of moles of the substance

R= universal gas comstant

T= temperature of the substance

Or the preaaure is given by

P = (nRT / V)

Now if some part of the gas is left at the base of the syringe then for the next experiment the volume V of the substance will reduce by a little amount. And if we performing our experiment in a isothermal condition ( at constant temperature) then the pressure reading will increase for the next experimental observation as per rhe above equation.