My reply to questions:
1) For this problem, it is safe to assume that all three gases are ideal (that is, they do not interact), and they occupy the exact same volume. So you can simply consider the three partial pressures separately.
2) All you need is the good old PV = nRT, where
R =...
1) I agree that \Delta H_ is positive when melting ice into water -- so on the other hand, when water solidifies into ice, \Delta H_ is negative, but \Delta S_ may not be. For this problem, I think we can assume that we're calculating the enthalpy changes that occur when transitioning from...
Oops, my bad... the third step for computing \Delta S_{surr} should be:
= \frac{-\Delta C_{p,m (water)}(273.15 K - 268.15 K) + \frac{6008 J}{mol} - \Delta C_{p,m (ice)}(268.15 K - 273.15 K)}{268.15 K}
Told you I was bad with the Latex code... heh
I have something similar for 3.1 a), and I'll just fill in on what I have for it:
This problem asks us to calculate various entropies as a function of two things -- temperature and phase. Since entropy is a state function, we can break the change of state into a few steps by changing one...