Units for Gibbs

[305421980]

Why is it that sometimes delta G is in kj and other times it is in kj/mole when each time you have to incorporate moles?

[305421980]

For example in calculating K in problem 5G21 the units used are only in KJ for the values of delta G

[Alice Chang 2H]

They're actually assuming that you know the units for ∆G to be kJ/mol. A lot of times, the textbook omits the "/mol" part because it is assumed to be included.

[Eva Zhao 4I]

As a general rule, anything with the ∆__r is per mole. Regarding ∆G (according to the reply of a similar question), free energy can have the units of kJ or kJ/mol depending on whether the question refers to the molar free energy of a substance or the free energy of a specific amount of the substance. Try to write out all your units and make sure they cancel properly to get the right units.