Exam 1 Key
... ΔG is positive even when the entropy is increasing. Thus, ΔH has to be a large positive number in order for ΔG to be positive. 25. Calculate the standard enthalpy of reaction for the reaction: NO2 (g) → NO (g) + O (g) Given the following reactions and their standard enthalpy changes: (7 pts) ...
... ΔG is positive even when the entropy is increasing. Thus, ΔH has to be a large positive number in order for ΔG to be positive. 25. Calculate the standard enthalpy of reaction for the reaction: NO2 (g) → NO (g) + O (g) Given the following reactions and their standard enthalpy changes: (7 pts) ...
pH - OCCC.edu
... low concentrations of H+ and OH - ions by proton transfer from one water molecule to another ...
... low concentrations of H+ and OH - ions by proton transfer from one water molecule to another ...
Lectures 1-6 - TCD Chemistry
... of mixing; real solutions, effect of intermolecular forces on ΔH of solution. ...
... of mixing; real solutions, effect of intermolecular forces on ΔH of solution. ...
Physical Chemistry I – review guide
... with time but also need to have no change with removal of the system from contact with its surroundings ◦ If removal of the system does change the macroscopic properties, it is in a steady state • Mechanical Equilibrium: No unbalanced forces act on or within the system • Material Equilibrium: No net ...
... with time but also need to have no change with removal of the system from contact with its surroundings ◦ If removal of the system does change the macroscopic properties, it is in a steady state • Mechanical Equilibrium: No unbalanced forces act on or within the system • Material Equilibrium: No net ...
Chap. 4 AQUEOUS RXNS O
... 6. The sum of all O.N. in a neutral compound is 0, otherwise ΣO.N. = ion charge ...
... 6. The sum of all O.N. in a neutral compound is 0, otherwise ΣO.N. = ion charge ...
Molar Heat of Reaction
... Expressed in kilojoules per mole (kJ/mol) of dissolved solute In this reaction heat can be either released or absorbed ...
... Expressed in kilojoules per mole (kJ/mol) of dissolved solute In this reaction heat can be either released or absorbed ...
FINAL REVIEW
... 48. A gas has a pressure of 608 mm Hg in a container with a volume of 545 cm3. If the container’s volume is increased to 1065 cm3, what will the pressure of the gas be? 311 mm Hg 49. What will the volume of a gas sample be at 100. °C if its volume at 23.1 °C is 51.3 L? 64.6 L 50. If the pressure of ...
... 48. A gas has a pressure of 608 mm Hg in a container with a volume of 545 cm3. If the container’s volume is increased to 1065 cm3, what will the pressure of the gas be? 311 mm Hg 49. What will the volume of a gas sample be at 100. °C if its volume at 23.1 °C is 51.3 L? 64.6 L 50. If the pressure of ...
Unit 2: Atoms, Ions and Ionic Compounds
... low concentrations of H+ and OH - ions by proton transfer from one water molecule to another ...
... low concentrations of H+ and OH - ions by proton transfer from one water molecule to another ...
thermodynamic study of solvation and complex formation in system
... E-mail: vandychev@isuct.ru The important problem of solutions chemistry concerns determination of comprehensive thermodynamic characteristics of the processes in multicomponent liquid systems. In real biological systems there are complex interactions between amino acids, peptides, "metals of life» a ...
... E-mail: vandychev@isuct.ru The important problem of solutions chemistry concerns determination of comprehensive thermodynamic characteristics of the processes in multicomponent liquid systems. In real biological systems there are complex interactions between amino acids, peptides, "metals of life» a ...
classical notions of heterogeneous freezing
... "embryo"), the energy that would be released by forming its volume (negative change) is not enough to create its surface (positive change) then nucleation does not proceed. The formed nucleus should reach some critical size (or radius), in order to be stable and the growth of the ice phase proceeds. ...
... "embryo"), the energy that would be released by forming its volume (negative change) is not enough to create its surface (positive change) then nucleation does not proceed. The formed nucleus should reach some critical size (or radius), in order to be stable and the growth of the ice phase proceeds. ...
What is equilibrium?
... • If the ion product, Qsp, exceeds the Ksp when two solutions are mixed, a precipitate will form. • The presence of a common ion in a solution lowers the solubility of a dissolved substance. ...
... • If the ion product, Qsp, exceeds the Ksp when two solutions are mixed, a precipitate will form. • The presence of a common ion in a solution lowers the solubility of a dissolved substance. ...
PRACTICE TEST for EXAM 10
... 6. Draw a line to represent the pH scale. Label neutral, acid region, and base region. What happens to the pH of a solution if the concentration of hydronium ion increases? What if it decreases? 7. Compare and contrast a strong acid and a weak acid, in terms of neutralization titration results, pH, ...
... 6. Draw a line to represent the pH scale. Label neutral, acid region, and base region. What happens to the pH of a solution if the concentration of hydronium ion increases? What if it decreases? 7. Compare and contrast a strong acid and a weak acid, in terms of neutralization titration results, pH, ...
Definitions - Loreto Science
... • is a group of three elements with similar chemical properties in which the atomic weight of the middle element is approximately equal to the average of the other two. ...
... • is a group of three elements with similar chemical properties in which the atomic weight of the middle element is approximately equal to the average of the other two. ...
Equilibrium chemistry
Equilibrium chemistry is a concerned with systems in chemical equilibrium. The unifying principle is that the free energy of a system at equilibrium is the minimum possible, so that the slope of the free energy with respect to the reaction coordinate is zero. This principle, applied to mixtures at equilibrium provides a definition of an equilibrium constant. Applications include acid-base, host-guest, metal-complex, solubility, partition, chromatography and redox equilibria.