Van't Hoff Equation

[AlyssaYeh_1B]

The Van't Hoff equation can be used to calculate K at a different temperature, but only if delta S nought and delta H nought are assumed to be constant. Will that always be the case in reality, though? Will delta S nought and delta H nought always be constant in the problems that we're asked to do?

[005324438]

I think in real life examples it isn't realistic, but if something is constant in a problem, there will be some way for you to tell, whether they tell you or they tell you something about the system that hints at it.

[Alex Chen 2L]

Delta H nought and delta S nought are always constant, because they are the changes in enthalpy/entropy in constant standard conditions (25 deg C, 1 atm). Therefore the Van't Hoff equation should always be accurate as long as those two values are known.

[705302428]

I think you will be told whether or not change in S is constant.