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Dpht 015: Physical Chemistry Question Paper

Dpht 015: Physical Chemistry

Course:Diploma In Pharmaceutical Technology

Institution: Kenya Methodist University question papers

Exam Year:2017

SCHOOL : MEDICINE & HEALTH SCIENCES
DEPARTMENT : PHARMACY

UNIT TITLE : PHYSICAL CHEMISTRY
TIME : 2 HOURS

INSTRUCTIONS
• This paper consists of One Section.
• Answer All Questions in this Section
Question One
• Define the following terms:
• Bohr’s postulates. (2 Mks)
• Heisenberg’s uncertainity principle. (2 Mks)
• Dalton’s law of partial pressure. (2 Mks)
• Assumption of kinetic theory. (4 Mks)
• Hund’s rule. (2 Mks)
• Derive Henderson-Hasselbalch equation of a weak acid and a conjugate base. (8 Mks)
Question Two
• Define matter and its properties. (2 Mks)
• What are the three phases of matter? (3 Mks)
• With the aid of a well labeled diagram, draw a phase equilibria. (10 Mks)
Question Three
Hydrogen iodide is formed by reacting hydrogen and iodine.
• Explain the above statement with a well balanced equation. (2 Mks)
• Derive an expression for the equilibrium constant Kc. (5 Mks)
• Factors that affect equilibrium constant. Give five. (5 Mks)
Question Four
Define the following terms:
• Thermodynamics (2 Mks)
• Sublimation (2 Mks)
• Condensation (2 Mks)
• Vaporization (2 Mks)
• Ionization energy (2 Mks)
• Enthalpy energy (2 Mks)
• Entropy energy (2 Mks)
Question Five
• Identify the three types of solids used in the study of matter. (3 Mks)
• Give an example of a network solid with covalent binding. Illustrate using a diagram. (5 Mks)
• What is Gibb’s phase rule? Write a formular.

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