PV P V V 1/P 1/V

A sample of an ideal gas at Pi is initially confined to one chamber of the apparatus represented above, and the other chamber is initially evacuated. The valve connecting the chambers is opened, and the gas expands at constant temperature to fill both chambers. Which of the following best describes AS for the process? A. S < 0 because the pressure of the gas decreases by half. B. S = 0 because there is no change in the total number of particles of the gas. C. S = 0 because the average kinetic energy of the gas particles is unchanged. D. S > 0 because the gas particles become dispersed in a larger volume.

P 8.98 atm Vị 8.95 L T; 610. K P; 4.38 atm V; 6.98 L T; ?K Tf = K

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CLESS the soction in your e lext. Part A What is the pressure in millimeters of mercury of 0.0125 mol of helium gas with a volume of 213 mL at 40. °C? (Hint: You must convert each quantity into the correct units (L, atm, mol, and K) before substituting into the ideal gas law.) Express your answer with the appropriate units. Value Units Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remalining Next > Provide Feedback MacBook Air F7 吕口 F3 esc * & $ % 9 @ # 6 3 4 P T Y E R Q G

How many grams of iron are needed to completely consume 36.4 L of chlorine gas according to the following reaction at 25 °C and 1 atm?iron ( s ) + chlorine ( g )  iron(III) chloride ( s )

7. A sample of nitrogen gas is collected over water at 20°C and a pressure of 1.00 atm. The volume of the collected gas is 250.0 L. What is the partial pressure of the nitrogen gas? (At 20°C, the vapor pressure of water is 17.5 torr) Dalton's Law: Protal = P, Solving this problem: Pnitrogen = Ptotal - Pwater + P. nitrogen water 8. A sample of hydrogen gas is collected Over water at 22°C. The pressure of the resultant mixture is 765torr. What is the pressure that is exerted by the dry hydrogen alone?

) What mass of Al(BrO.), is required to produce 44.76 liters of O,which is collected over water at 40 C and a total pressure of 1.23 atm (vapor pressure of water at 40 C is 55.3 torr). Al(BrO.). -> AIBr, O,

The average kinetic energy of the molecules in a gas sample depends only on the temperature T. R=8.314. What is the rms speed 02 molecules at 443 K? What is the rms speed of He atoms at 443 K?