5. Bubbles expand or contract until their pressure matches the pressure of the surroundings. Pressure is connected to the number of gas particle collisions. Explain the behavior of the bubble. a) Gas particles are trapped in the bubble. What happens to the number of collisions on the inside of the bubble as the bubble expands? (increase, decrease, stay the same) b) How does this help the bubble match the pressure of it's surroundings? BIU 6. A balloon of helium has a volume of 1.0 L at 0.98 atm. The balloon floats in the sky until the pressure is 0.50 atm. What is the new volume assuming temperature is constant? Show your work including units.

5. Bubbles expand or contract until their pressure matches the pressure of the surroundings. Pressure is connected to the number of gas particle collisions. Explain the behavior of the bubble. a) Gas particles are trapped in the bubble. What happens to the number of collisions on the inside of the bubble as the bubble expands? (increase, decrease, stay the same) b) How does this help the bubble match the pressure of it's surroundings? BIU 6. A balloon of helium has a volume of 1.0 L at 0.98 atm. The balloon floats in the sky until the pressure is 0.50 atm. What is the new volume assuming temperature is constant? Show your work including units.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter5: Gases

Section: Chapter Questions

Problem 26Q: As weather balloons rise from the earths surface, the pressure of the atmosphere becomes less,...

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As weather balloons rise from the earths surface, the pressure of the atmosphere becomes less, tending to cause the volume of the balloons to expand. However, the temperatura is much lower in the upper atmosphere than at sea level. Would this temperatura effect tend to make such a balloon expand or contract? Weather balloons do, in fact, expand as they rise. What does this tell you?
Many conditions need to be met to produce a chemical reaction between molecules. What if all collisions between molecules resulted in a chemical reaction? How would life be different?
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105 The decomposition of mercury(II) thiocyanate produces an odd brown snake-like mass that is so unusual the process was once used in fireworks displays. There are actually several reactions that take place when the solid Hg(SCN)2 is ignited: 2Hg(SCN)2(s)2HgS(s)+CS2(s)+C3N4(s)CS2(s)+3O2(g)CO2(g)+2SO2(g)2C3N4(s)3(CN)2(g)+N2(g)HgS(s)+O2(g)Hg(l)+SO2(g) A 42.4-g sample of Hg(SCN)2 is placed into a 2.4-L vessel at 21°C. The vessel also contains air at a pressure of 758 torr. The container is sealed and the mixture is ignited, causing the reaction sequence above to occur. Once the reaction is complete, the container is cooled back to the original temperature of 21°C. (a) Without doing numerical calculations, predict whether the final pressure in the vessel will be greater than, less than, or equal to the initial pressure. Explain your answer. (b) Calculate the final pressure and compare your result with your prediction. (Assume that the mole fraction of O2 in air is 0.21.)
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