Calculating Delta S with a change in temperature

[Tinisha 1G]

If the problem does not specify, do you use C(@constant pressure) or C(@constant volume) when calculating delta S with a temperature change?

[Rachana Jayaraman 1H]

Usually it is constant pressure, unless it's a two step question where you are changing volume and temperature. In the second case, you do constant volume because you do not want it to change again.

[Brian Chhoy 4I]

Also take into account the shape of the molecule because whether it is monatomic, linear, or non-linear changes the C value in both constant pressure and volume.

[Ray Huang 1G]

Check the reaction to see if more molecules are produced on the product side vs reactant side. Then check if it's in a container or not. Assuming Cp is usually safer.

[Jason Ye 2I]

You can change the variables to include temperature its just that temperature is inverse.

[Ashe Chen 2C]

It is usually Cp unless the volume is changing