equations

[205150314]

Any tips or tricks on how to know which formula to use in question if they give you multiple givens, like Temp, Pressure or Volume?

[AronCainBayot2K]

It usually depends on a lot of factors. If the problem were to give temperature change or volume change nCln (T2/T1) or -nRT ln (V2/V1) respectively. Those are usually the equations you would need to use when there is a change in some constant. Otherwise just know the equations that have work exclusively, entropy, enthalpy, etc.

[san_2F]

I usually look at what they're asking me to find, write down all the equations we know that relate it, and see which equation to use based off the information given to me in the problem.

[J_CHEN 4I]

You can write down the information given (e.g. m = 6782 g, T 53 K, q = 6783 J,...) and see what you can do with them to get to where the question is asking of you.

[Sreyes_1C]

read closely as to what they give you. Sometimes they give you information to throw you off but look for any constant pressure, temperature, or volume. Also read closely to know exactly what values change. Also read for any words that describe the reaction or changes in the systems. If you know the equations you'll be able to piece everything together