LECTURE PHYSICAL CHEMISTRY 3rd EDITION ROBERT G. MORTIMER

www.daykemquynhon.ucoz.com
Entropy Changes for Reversible Phase Changes
Two phases of a single substance can be at
equilibrium with each other at a fixed temperature that
depends on the pressure. For example, liquid and
gaseous water can be at equilibrium with each other
at 100.00◦C if the pressure is 1.000 atm (760.0 torr),
and can be at equilibrium with each other at 25.00 ◦ C if
the pressure is 23.756 torr. If an equilibrium phase
change is carried out at constant pressure and
temperature Eq. (3.3-2) applies. Since the pressure is
constant, q is equal to ∆H, and
https://plus.google.com/+DạyKèmQuyNhơn
Collected by Nguyen Thanh Tu Teacher
MailBox : nguyenthanhtuteacher@hotmail.com