TAILIEUCHUNG - physics_test_bank_split_21

Tham khảo tài liệu 'physics_test_bank_split_21', khoa học tự nhiên, vật lý phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Simpo PDF Merge and Split Unregistered Version - http 63. As the pressure in an ideal gas is increased isothermally the average molecular speed A. increases B. decreases C. increases at high temperature decreases at low D. decreases at high temperature increases at low E. stays the same ans E 64. As the volume of an ideal gas is increased at constant pressure the average molecular speed A. increases B. decreases C. increases at high temperature decreases at low D. decreases at high temperature increases at low E. stays the same ans A 65. Two ideal monatomic gases are in thermal equilibrium with each other. Gas A is composed of molecules with mass m while gas B is composed of molecules with mass 4m. The ratio of the average molecular speeds va vb is A. 1 4 B. 1 2 C. 1 D. 2 E. 4 ans D 66. Ideal monatomic gas A is composed of molecules with mass m while ideal monatomic gas B is composed of molecules with mass 4m. The average molecular speeds are the same if the ratio of the temperatures Ta Tb is A. 1 4 B. 1 2 C. 1 D. 2 E. 4 ans A 67. Two monatomic ideal gases are in thermal equilibrium with each other. Gas A is composed of molecules with mass m while gas B is composed of molecules with mass 4m. The ratio of the average translational kinetic energies Ka Kb is A. 1 4 B. 1 2 C. 1 D. 2 E. 4 ans C Chapter 19 THE KINETIC THEORY OF GASES 301 Simpo PDF Merge and Split Unregistered Version - http 68. Ideal monatomic gas A is composed of molecules with mass m while ideal monatomic gas B is composed of molecules with mass 4m. The average translational kinetic energies are the same if the ratio of the temperatures Ta Tb is A. 1 4 B. 1 2 C. 1 D. 2 E. 4 ans C 69. Which of the following change when the pressure of an ideal gas is changed isothermally A. Mean free path B. Root-mean-square molecular speed C. Internal energy D. Most probable kinetic energy E. Average speed ans A 70. When an ideal gas undergoes a slow isothermal expansion A. the work .

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