G3 A glass vessel contains 28 g nitrogen gas Assuming ideal behavior which of

G3 a glass vessel contains 28 g nitrogen gas assuming

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G.3 A glass vessel contains 28 g nitrogen gas. Assuming ideal behavior, which of the processes listed below would double the pressure exerted on the walls of the vessel? a) Adding enough mercury to fill one-half the container. b) Raising the temperature of the container from 30. o C to 60. o C. c) Raising the temperature of the container from -73 o C to 127 o C. d) Adding 28 g nitrogen gas (inert gas). Processes a, c, and d will all result in a doubling of the pressure. Process a has the effect of halving the volume, which would double the pressure (Boyle’s law). Process c doubles the pressure because the absolute temperature is doubled (from 200. K to 400. K). Process d doubles the pressure because the moles of gas are doubled (28 g N 2 is 1 mol of N 2 ). Process b won’t double the pressure since the absolute temperature is not doubled (303 K to 333 K). G.4 An ideal gas at 7 o C is in a spherical flexible container having a radius of 1.00 cm. The gas is heated at constant pressure to 88 o C. Determine the radius of the spherical container after the gas is heated. Because the container is flexible, P is assumed constant. The moles of gas present are also constant.
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Gas Law Problems Key G.5 Concentrated hydrogen peroxide solutions are explosively decomposed by traces of transition metal ions (such as Mn or Fe): 2H 2 O 2 (aq)  2H 2 O(l) + O 2 (g) What volume of pure O 2 (g) collected at 27 o C and 746 Torr, would be generated by decomposition of 125 g of 50.0% by mass hydrogen peroxide solution? Ignore any water vapor that may be present.
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  • Fall '08
  • Kenney
  • Chemistry, Gas Law Problems

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