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If the fuel cell used methanol (CH,OH) fuel instead of H, what would be the minimum amount (in grams) of methanol required for 100 hof life again assuming 100% fuel utilization? Methanol has a molecular mass of 32 g/mol. What would be the corresponding volume of liquid methanol fuel (the density of liquid methanol is 0.79 g/cm?)?

If the fuel cell used methanol (CH,OH) fuel instead of H, what would be the minimum amount (in grams) of methanol required for 100 hof life again assuming 100% fuel utilization? Methanol has a molecular mass of 32 g/mol. What would be the corresponding volume of liquid methanol fuel (the density of liquid methanol is 0.79 g/cm?)?

Chemistry
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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I need to solve only part e . The result should be 99 g CH3OH = 78.20 CM^3 . How we can find this numbers
3.12 This problem has several parts: a. If a portable electronic device draws 1 A current at a voltage of 2.5 V, what is the power requirement for the device? b. You have designed a fuel cell that delivers 1 A at 0.5 V. How many of your fuel cells are required to supply the above portable electronic device with its necessary voltage and current requirements? c. You would like the portable electronic device to have an operating lifetime of 100 h. Assuming 100% fuel utilization, what is the minimum amount of H, fuel (in grams) required? d. If this H, fuel is stored as a compressed gas at 500 atm, what volume would it occupy (assume ideal gas, room temperature)? If it is stored as a metal hydride at 5 wt % hydrogen, what volume would it occupy? (Assume the metal hydride has a density of 10 g/cm.) e. If the fuel cell used methanol (CH;OH) fuel instead of H, what would be the minimum amount (in grams) of methanol required for 100 h of life again assuming 100% fuel utilization? Methanol has a molecular mass of 32 g/mol. What would be the corresponding volume of liquid methanol fuel (the density of liquid methanol is 0.79 g/cm)?
Transcribed Image Text:3.12 This problem has several parts: a. If a portable electronic device draws 1 A current at a voltage of 2.5 V, what is the power requirement for the device? b. You have designed a fuel cell that delivers 1 A at 0.5 V. How many of your fuel cells are required to supply the above portable electronic device with its necessary voltage and current requirements? c. You would like the portable electronic device to have an operating lifetime of 100 h. Assuming 100% fuel utilization, what is the minimum amount of H, fuel (in grams) required? d. If this H, fuel is stored as a compressed gas at 500 atm, what volume would it occupy (assume ideal gas, room temperature)? If it is stored as a metal hydride at 5 wt % hydrogen, what volume would it occupy? (Assume the metal hydride has a density of 10 g/cm.) e. If the fuel cell used methanol (CH;OH) fuel instead of H, what would be the minimum amount (in grams) of methanol required for 100 h of life again assuming 100% fuel utilization? Methanol has a molecular mass of 32 g/mol. What would be the corresponding volume of liquid methanol fuel (the density of liquid methanol is 0.79 g/cm)?
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