Physics, 10.11.2020 04:00 maddiehope6893
Directions: Solve the following gas law problems. You MUST show your work on your paper (you can take a picture of your work on loose-leaf if you do not know how to do this on the computer and if you do not have a scanner. Submit the picture to the drop box, as well.) These are new problems that have never been assigned in any previous class. (3 points each) 1. The pressure of a gas in a 2.00 L container is 1.43 atm at a temperature of 18.7º C. What is the new pressure if the temperature remains constant and the volume decreases to 1.75 L? 2. What was the initial volume of a gas at 0.500 atm if its new pressure is 1.00 atm in a 10.0 L cylinder? Assume no change in temperature and no loss of gas during the transfer. 3. A 0.750-L container containing gas at a temperature of 27.3° C is transferred to a flask with a volume of 0.500-L. Assuming there is no change in pressure during or after the transfer, what is the temperature of the gas in the new flask? 4. The volume of a gas in an expandable container is 45.0 L at 44.3º C. If the pressure remains constant, what is the new volume when the temperature increases to 55.0º C? 5. At constant volume, the pressure of air in a container is 1.60 atm when the temperature is 25.0° C. What is the new pressure if the temperature is increased to 30.0° C? 6. A mixture of gases in a 4.5-L rigid-sided container is heated from a temperature of 28.5° C to 37.8° C. If the initial pressure was 1.12 atm, What is the new pressure? 7. What will be the temperature in Celsius of a gas sample having a volume of 3.20 L and a pressure of 1.32 atm if its original temperature was 22º C, its volume was 2.20 L, and its pressure was 2.50 atm? 8. What was the initial volume of a gas at 1.0 atm and having a temperature of 32.0º C if it was gets transferred to a 2.25-L container at a room temperature of 22.1º C and a pressure of 1.05 atm?
Answers: 2
Physics, 22.06.2019 20:10
Two cannon balls weighing 18 kg and 24 kg are chained together and fired horizontally with a velocity of 165 m/s from the top of a 21-m wall. the chain breaks during the flight of the cannonballs and the 18-kg cannonball strikes the ground at t = 1.5 s, at a distance of 240 m from the foot of the wall, and 7 m to the right of the line of fire. determine the position of the other cannonball at that instant. neglect the resistance of the air.
Answers: 1
Physics, 22.06.2019 22:00
In the united states, tornadoes generally occur because of the freezing of ocean water underwater earthquakes meeting of cool and warm air masses shifting of warm and cool ocean currents
Answers: 2
Physics, 22.06.2019 22:30
Materials will have different energies associated with the electrons inside them. this is related to how strongly bound they are by their work function. if we sandwich a material with a very low energy between two materials with a high energy, we create a trap for an electron. if this trap is very narrow in one direction in comparison to the others, this is approximately a 1-dimensional box that confines the electron. what is the lowest energy of an electron in the box if the thinnest direction across the materials is 4.81 nm?
Answers: 3
Directions: Solve the following gas law problems. You MUST show your work on your paper (you can tak...
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