Physics, 02.12.2019 20:31 shyshy1791
1. the average kinetic energy of a molecule, is called thermal energy, it is directly related to absolute temperature. ke (average per molecule) = 12 m v2(average) = 32 kbt (kb =1.38×10−23 j/k) 2. the average speed of molecules in a gas: vrms = 3kbtm√ where vrms stands for root-mean-square (rms) speed. 3. the internal energy of a gas is the total energy of all the n atoms and molecules. for a monatomic gas, each atom (molecule) has only the kinetic energy. therefore, internal energy u = n ke (average per molecule) =n ( 32 kbt) = 32 nkbt = 32 nrt use the ideal gas law: pv = nkbt = nrt, then internal energy u = 32 pv (a) what is the average kinetic energy of a gas molecule at 17 °c? report result in 10-23 j. for example, if the result is 736*10-23 j, enter 736.
Answers: 2
Physics, 22.06.2019 11:00
What would be the result of an alpha particle coming into a magnetic field? a) the alpha particle will stop moving. b) the alpha particle will reverse its direction. c) the alpha particle will be deflected in a curve path. d) the alpha particle will continue to travel in a straight line.
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Physics, 22.06.2019 17:00
Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.
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Physics, 22.06.2019 19:30
Petroleum contains energy. a. light b. kinetic c. chemical d. mechanical
Answers: 2
1. the average kinetic energy of a molecule, is called thermal energy, it is directly related to abs...
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