SECTIONA: MULTIPLE CHOICEQUESTIONS
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There are 20 questions in this section. Answer ALL questions by selecting the letter of the
correct answer. Each question carries 2 marks.
1. The heating of a gas at constant pressure is governed by
A. Boyle's law
B. Charles' law
C. Gay Lussac law
D. Avogadro's law
E. Ideal gas equation of state
2. An ideal gas is expanded to twice its original volume during an isothermal process. The
final pressure of the gas
A. Increases to less than twice its original value
B. Decreases to twice its original value
C. Increases to more than twice its original value
D. Does not change
E. Decreases to one-half its original value
3. A sample of an ideal gas in a rigid closed container at a temperature of 50°C and 1.5
atm is heated to 100°C. What is the pressure of the gas at the higher temperature?
A. 3 atm
B. 3.5 atm
C. 1.7 atm
D. 4.6 atm
E. Insufficient information
4. What is the volume of 2 moles of a gas at STP?
A. 22.4 dm 3
B. 48.8 dm 3
C. 67.2 dm 3
D. 44.8 dm 3
E. Insufficient information
5. A closed system is one in which
A. Heat does not cross boundary of the system but mass may do so.
B. Both mass and energy cross the boundary of the system
C. Neither mass nor energy crosses the boundary of the system
D. Mass crosses the boundary but not the energy
E. Thermodynamic reactions do not occur
6. An intensive property of a system is one whose value
A. depends on the mass of the system like volume.
B. is not dependent on the path taken followed but on the state.
C. is dependent on the path followed and not on the state.
D. is always constant.
E. does not depend on the mass of the system, like temperature, pressure, etc.
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