Physics, 09.10.2019 21:00 Bashirar19
One mole of a monatomic ideal gas undergoes a reversible expansion at constant pressure, during which the entropy of the gas increases by 14.41 j/k and the gas absorbs 6236 j of thermal energy. calculate the initial and final temperatures of the gas. one mole of a second monatomic ideal gas undergoes a reversible isothermal expansion, during which it doubles its volume, performs 1729 j of work, and increases its entropy by 5.763 j/k. calculate the temperature at which the expansion was conducted.
Answers: 1
Physics, 22.06.2019 05:30
Iwill give 30 points to whoever answers ! what is the formula for actual mechanical advantage and ideal mechanical advantage?
Answers: 1
Physics, 22.06.2019 07:30
Some material consisting of a collection of microscopic objects is kept at a high temperature. a photon detector capable of detecting photon energies from infrared through ultraviolet observes photons emitted with energies of 0.3 ev, 0.5 ev, 0.8 ev, 2.0ev, 2.5ev, and 2.8ev. these are the only photon energies observed. (a) draw and label a possible energy-level diagram for one of the microscopic objects, which has four bound states. on the diagram, indicate the transitions corresponding to the emitted photons. explain briefly. (b) would a spring–mass model be a good model for these microscopic objects? why or why not? (c) the material is now cooled down to a very low temperature, and the photon detector stops detecting photon emissions. next, a beam of light with a continuous range of energies from infrared through ultraviolet shines on the material, and the photon detector observes the beam of light after it passes through the material. what photon energies in this beam of light are observed to be significantly reduced in intensity (“dark absorption lines”)? explain briefly.
Answers: 3
Physics, 22.06.2019 10:30
Agroup of students were investigating the force of gravity. they began by dropping a foam ball from a height of 3 meters into a bucket of sand. the ball hit the sand in 0.306 seconds. they dropped additional balls of approximately the same diameter, but of different masses. here is the data they collected. based on this experiment and the collected data, what would their conclusion be?
Answers: 1
Physics, 22.06.2019 13:40
Dao makes a table to identify the variables used in the equations for centripetal acceleration. what quantities belong in cells x and y?
Answers: 2
One mole of a monatomic ideal gas undergoes a reversible expansion at constant pressure, during whic...
Mathematics, 29.10.2020 21:30
Business, 29.10.2020 21:30
Spanish, 29.10.2020 21:30
English, 29.10.2020 21:30
History, 29.10.2020 21:30
Mathematics, 29.10.2020 21:30
Mathematics, 29.10.2020 21:30
Social Studies, 29.10.2020 21:30
Mathematics, 29.10.2020 21:30
Computers and Technology, 29.10.2020 21:30
Social Studies, 29.10.2020 21:30
Mathematics, 29.10.2020 21:30