Question 1
Consider a weak acid, HX. If a 0.10 M solution of HX has a pH of 5.29 at 25°C, what is ΔG° for the acid's dissociation reaction at 25°C?
◦
–54.7 kJ◦
4.58 kJ◦
0 kJ◦
–4.58 kJ◦
54.7 kJQuestion 2
Consider the dissociation of hydrogen:
H2(g)
2H(g)
One would expect that this reaction:
◦
will be spontaneous at any temperature.◦
will be spontaneous at high temperatures.◦
will be spontaneous at low temperatures.◦
will not be spontaneous at any temperature.◦
will never happen.