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Physical Chemistry
Ethanal and Carbon disulphide are miscible liquid which form a two component and two phase system.
The above mixture shows a positive deviation from Raoult’s law. Draw a labelled phase diagrams to show:
(I). The variation of boiling point with composition at constant pressure
The above mixture shows a positive deviation from Raoult’s law. Draw a labelled phase diagrams to show:
(I). The variation of boiling point with composition at constant pressure
Physical Chemistry
Ethanal and Carbon disulphide are miscible liquid which forms a two-component and two-phase system.
The above mixture shows a positive deviation from Raoult’s law. Draw a labelled phase diagrams to show: i. The variation of vapour pressure with composition at a constant temperature.
The above mixture shows a positive deviation from Raoult’s law. Draw a labelled phase diagrams to show: i. The variation of vapour pressure with composition at a constant temperature.
Physical Chemistry
Ethanal and Carbon disulphide are miscible liquid which forms a two-component and two-phase system.
Although the mixture cannot be separated into the two components by fractional distillation, chemical methods can be used. (i). Suggest a reason why the mixture cannot be separated by fractional distillation. (ii). Briefly describe chemical reactions for obtaining one of the two components from the mixture.
Although the mixture cannot be separated into the two components by fractional distillation, chemical methods can be used. (i). Suggest a reason why the mixture cannot be separated by fractional distillation. (ii). Briefly describe chemical reactions for obtaining one of the two components from the mixture.
Physical Chemistry
Ethanal and Carbon disulfide are miscible liquid which forms a two-component and two-phase system.
Suggest a reason why the mixture shows a positive deviation.
Suggest a reason why the mixture shows a positive deviation.
Physical Chemistry
Cd2+(aq) + 4CH3NH2(aq)≤≥ [Cd(CH3NH2)4]
2+(aq) Kstab = 3.6 × 106 equilibrium I
The concentration of Cd2+(aq) is 1.00×10^-4 moldm-3
Calculate the concentration of CH3NH2(aq) needed to reduce the concentration of Cd2+(aq) in this dilute solution by a factor of one thousand.
2+(aq) Kstab = 3.6 × 106 equilibrium I
The concentration of Cd2+(aq) is 1.00×10^-4 moldm-3
Calculate the concentration of CH3NH2(aq) needed to reduce the concentration of Cd2+(aq) in this dilute solution by a factor of one thousand.
Physical Chemistry
A car travelling around a banked (tilted) highway turn goes out of control, leaves the road, travels through the air, and lands on the ground a distance (d) from the launch-point, after dropping a certain distance (h) below that point. (A sports equivalent would be a ski jumper taking off at an angle θ above the horizontal.)
An investigator needs three pieces of information in order to make a model of the trajectory, mostly for the purpose of finding the initial speed of the car. Why are three pieces of data needed and not two, four, or some other number?
An investigator needs three pieces of information in order to make a model of the trajectory, mostly for the purpose of finding the initial speed of the car. Why are three pieces of data needed and not two, four, or some other number?
Physical Chemistry
X, Y and Z are all gases that behave ideally and react according to the equation shown.
X(g) + 2Y(g) → 2Z(g)
When 3.0 mol of X and 3.0 mol of Y are placed inside a container with a volume of 1.0 dm3
, they
react to form the maximum amount of Z.
The final temperature of the reaction vessel is 120 °C.
What is the final pressure inside the reaction vessel?
X(g) + 2Y(g) → 2Z(g)
When 3.0 mol of X and 3.0 mol of Y are placed inside a container with a volume of 1.0 dm3
, they
react to form the maximum amount of Z.
The final temperature of the reaction vessel is 120 °C.
What is the final pressure inside the reaction vessel?
Physical Chemistry
5. Describe the function of a salt bridge. What would happen if the half-cell compartments of a galvanic cell were not connected?
Physical Chemistry
Consider the decomposition of solid Ag2O to form Ag (s) and O2 (g)
Write a balanced chemical equation in which one mole of O2 is produced per mole of the reaction.
Write a balanced chemical equation in which one mole of O2 is produced per mole of the reaction.
Physical Chemistry
Consider the decomposition of solid Ag2O to form Ag (s) and O2 (g)
Write a balanced chemical equation in which one mole of O2 is produced per mole of the reaction.
Write a balanced chemical equation in which one mole of O2 is produced per mole of the reaction.
