Units for Work

[rachelle1K]

For , are we expected to memorize that there are 101.325 J in 1L.atm ?

[705302428]

I think that would be given to us.

[rachelle1K]

I just looked it up and there is a chart in the textbook which explains that the pressure should be in Pa, and volume in m^3, so no conversions need to be done for this this equation.

[Kate Swertfager]

The SI units for pressure are Pascals and for V they are m^3. For work it is Joules so I think Pa times m^3 gives J.

[Angus Wu_4G]

If you check the equation sheet online in Dr.Lavelle's website, that specific value is given to you. (101.325J=1 LXatm)

You can also derive this conversion if you divide the 2 gas constants R, ((8.314J(K)^-1,(mol)^-1) / (0.08206 Latm (K)^-1(mol)^-1). You will find that the units cancel out to give you approximately 101.325J per 1 L atm

[205405339]

From what i remember, most professors usually provide conversions on the test in the form of a formula chart or at least include a needed conversion in the question