test5tro - Chapter 5 Practise Test 1. An open end mercury...

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1. An open end mercury manometer was constructed from a U - shaped tube. In a particular measurement, the level in the end connected to the gas manifold, on which the experiment was being conducted, measured 76.2 cm above the U - neck, while the level in the open end (to the atmosphere) was 23.8 cm above the U - neck. The outside air pressure in the laboratory was measured as 754 torr. What is the pressure in the gas manifold? A) 230 torr B) 236 torr C) 241 torr D) 246 torr E) 1278 torr 2. A real gas behaves most nearly like an ideal gas under condition of A) low temperature and high pressure B) low temperature and low pressure C) high temperature and low pressure D) high temperature and high pressure E) actually it will behave like an ideal gas regardless of the temperature or the pressure as long as it remains in the gaseous state 3. A sample of a gas in a cylindrical chamber with a movable piston occupied a volume of 4.626 liters when the pressure was 0.983 atm and the temperature was 27.2 °C. The pressure was readjusted to 1.388 atm by moving the piston. What was the volume occupied by the sample under the later conditions if the temperature remained constant throughout? A) 0.303 liters B) 3.30 liters C) 4.68 liters D) 6.35 liters E) 6.49 liters 4. A sample of a gas in a cylindrical chamber with a movable piston occupied a volume of 11.60 liters when the pressure was 9.97 x 10 4 Pa and the temperature was 24.9 °C. The volume of the system was readjusted to 8.50 liters by moving the piston. What was the pressure exerted on the surface of the piston, in pascals, by the gas if the temperature of the system remained constant ? A)
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This note was uploaded on 11/15/2010 for the course CHEM 161 taught by Professor Casaschi,a during the Fall '08 term at University of Hawaii, Manoa.

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test5tro - Chapter 5 Practise Test 1. An open end mercury...

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