The hydrogen-oxygen fuel cell is described in the text. For the questions below, assume the following: Assume that the air is 20 % O₂ by volume and that all the O₂ is consumed in the cell. The other components of air do not affect the fuel-cell reactions. Assume ideal gas behavior. (a) What volume of H₂(g), stored at 25.0°C at a pressure of 135 atm, would be needed to run an electric motor drawing a current of 8.50 A for 3.00 hr ? L (b) What volume (in liters) of air at 25.0°C and 1.06 atm will have to pass into the cell per minute to run the motor ? L/min

The hydrogen-oxygen fuel cell is described in the text. For the questions below, assume the following: Assume that the air is 20 % O₂ by volume and that all the O₂ is consumed in the cell. The other components of air do not affect the fuel-cell reactions. Assume ideal gas behavior. (a) What volume of H₂(g), stored at 25.0°C at a pressure of 135 atm, would be needed to run an electric motor drawing a current of 8.50 A for 3.00 hr ? L (b) What volume (in liters) of air at 25.0°C and 1.06 atm will have to pass into the cell per minute to run the motor ? L/min

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

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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The hydrogen-oxygen fuel cell is described in the text. For the questions below, assume the following: Assume that the air is 20 % O2 by volume and that all the O2 is consumed in the cell. The other components of air do not affect the fuel-cell reactions. Assume ideal gas behavior. (a) What volume of H2(g), stored at 25.0 ° C at a pressure of 142 atm, would be needed to run an electric motor drawing a current of 8.50 A for 3.00 hr ? L (b) What volume (in liters) of air at 25.0 ° C and 0.95 atm will have to pass into the cell per minute to run the motor ? L / min
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19.37
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