Exercise 20.1 Pet; (0;
At 25°C, pure octane (C8H18) has a vapor pressure of 95 Torr and pure benzene (C6H6)
has a vapor pressure of 11 Torr. Determine the partial pres
Predict whether the reactions below are spontaneous either as written, or in the
reverse direction, under standard conditions at 25C.
(a) Ni s + Cu2+(aq) Cu s + Ni2+(aq)
Predict whether the reactions below are spontaneous eithe
Calculate S when 1.00 L of an ideal gas at a pressure of 2.00 atm expands to
a volume of 2.00 L at a constant temperature of 100C.
For each of the following pairs of systems, indicate which, (i) or (ii), you would
expect to hav
Calculate the work done on the system in the final state of Example 15.4 (Vi =
1.00 L, Pi = 2.00 atm) when it is expanded to Vf = 2.00 L, Pf = 1.00 atm by (a) a
reversible process and (b) an irreversible process in which the pressure is
(a) Write a thermochemical equation for the oxidation of solid white phosphorus (P4)
by gaseous dioxygen to give solid P4010. Oxidation of one mole of
The dimerization of NO2 has an equilibrium constant of Kp = 6.75 at 298 K, with
G = 4.74 kJ mol-1.
2NO 2 (g)
N 2 O 4 (g)
Consider the situation where the initial pressures are PNO2 = 0.233 atm and
PN2O4 = 0.659 atm. (a) Calculate G and (b) i