Practice_Test_1

# Practice_Test_1 - Practice Test 1 1 Temperature of a...

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Practice Test 1 1. Temperature of a substance is proportional to a. the average velocity of its molecules b. the average kinetic energy of its molecules c. the square of the average kinetic energy of its molecules d. the temperature of the surrounding medium 2. The length of the mercury column in a thermometer is 2.8 cm when immersed in ice water and 22.4 cm when immersed in boiling water. What is the length of the mercury column at 72 o C? a. 16.9 cm b. 17.8 cm c. 18.05 cm d. 21 cm 3. In question 2, what temperature corresponds to a length of 12.8 cm? a. 45 o C b. 48 o C c. 51 o C d. 55 o C 4. A constant volume gas thermometer has a pressure of 4.0 kPa when it reads a temperature of 373 K. What is the triple point pressure P 3 ? a. 0.5 kPa b. 1.2 kPa c. 2.2 kPa d. 2.9 kPa 5. If the triple point pressure is 4.5 kPa, what is the pressure corresponding to the boiling point of water? a. 6.14 kPa b. 6.88 kPa c. 7.22 kPa d. 8.02 kPa 6. When a metal rod is heated, its linear expansion doe not depend on its: a. original length b. coefficient of linear expansion c. temperature increase d. specific heat capacity 7. When a 1.5-m long steel rod is heated form 20 o C to 80 o C, its length increases by ( α for steel is 11.0 x 10 -6 /K) a. 0.25 cm b. 0.5 cm c. 1.0 mm d. 0.25 mm 8. A cylinder contains a gas at a pressure of 2.5 atm when the temperature is 30 o C. If the temperature is increased to 70 o C, what will be the pressure of the gas? a. 7.8 atm b. 5.2 atm c. 3.5 atm d. 2.83 atm

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9. A cubical container of side 1.0 m contains 10 moles of a gas at a temperature of 55 o C. What is the pressure of the gas? a. 101 kPa b. 55 kPa c. 32 kPa d. 27 kPa 10. If the pressure and volume of an ideal gas are doubled, what happens to its absolute temperature? a. Its absolute temperature is also doubled b. Its absolute temperature remains the same c. Its absolute temperature is quadrupled d. Its absolute temperature is halved 11. An isothermal process is one in which a. The temperature remains a constant b. The volume remains a constant c. The pressure remains a constant d. no heat is added or removed from the system 12. An isobaric process is one in which a. The temperature remains a constant b.
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## This note was uploaded on 05/01/2011 for the course PHY 2049 taught by Professor George during the Spring '11 term at Edison State College.

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Practice_Test_1 - Practice Test 1 1 Temperature of a...

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