Constant Volume and Pressure Values

[asannajust_1J]

Do we need to know the different C values at constant pressure for monoatomic, diatomic, and polyatomic gases?
ex) monoatomic Cv=3/2R Cp= 5/2R ; Diatomic Cv= 5/2R Cp= 7/2R; Polyatomic Cv = 7/2R Cp=9/2R

[Lara Kristine Bacasen 1L]

It's probably good to remember the monoatomic ones. We were going over some practice with a TA and on her previous midterm she had one that used one of those values. We asked about the diatomic values and she said she wasn't sure.

[Anika Chakrabarti 1A]

The monatomic values are on the constants and equations sheet. But for diatomic, it's not that hard to remember since you just add 1 to each of the ratios. I haven't seen any practice problems where we need to use polyatomic values, though.

[Hannah Pham]

I think it would be good for you to remember them, especially monoatomic ones.

[ThomasNguyen_Dis1H]

I think we do need to know them, but it's easy to memorize since Cp=Cv+R and you only need to know three values of Cv which are 3/2R, 5/2R and 3R.

[Rosa Munoz 2E]

You do need to memorize them

[Hannah Romeo 1J]

I would say to know that Cp=Cv + R so you can quickly derive it to save time.

[rohun2H]

The monoatomic values are on the constants and equations sheet.

[Michelle Xie 2B]

I think we just need to know the monoatomic ones.