4. What is the main difference between burning hydrogen in a car-type engine andoxidizing it in a fuel cell?(A) the engine produces CO₂ but the fuel cell does not(B) the engine produces electricity but the fuel cell does not(C) the fuel cell produces CO2 but the engine does not(D) the fuel cell produces electricity but the engine does not5. Which of these is a significant disadvantage of hydrogen-powered automobilescompared to gasoline-powered ones?(A) hydrogen fuel cells are less efficient than gasoline engines(B) hydrogen is difficult to transport and store(C) hydrogen is radioactive and the public fears it(D) unlike gasoline, hydrogen mixed with air is dangerously explosive6. The energy density of methanol is about half that of gasoline. Using yourknowledge of the efficiency of fuel cells versus gasoline engines, how many mileswould you expect a methanol-powered car could travel on a gallon of methanol?(The density of methanol is similar to gasoline)(A) 50 miles(B) 20 miles(C) 5 miles(D) 1 mile

Answered: 4. What is the main difference between…

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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4. What is the main difference between burning hydrogen in a car-type engine and
oxidizing it in a fuel cell?
(A) the engine produces CO₂ but the fuel cell does not
(B) the engine produces electricity but the fuel cell does not
(C) the fuel cell produces CO2 but the engine does not
(D) the fuel cell produces electricity but the engine does not
5. Which of these is a significant disadvantage of hydrogen-powered automobiles
compared to gasoline-powered ones?
(A) hydrogen fuel cells are less efficient than gasoline engines
(B) hydrogen is difficult to transport and store
(C) hydrogen is radioactive and the public fears it
(D) unlike gasoline, hydrogen mixed with air is dangerously explosive
6. The energy density of methanol is about half that of gasoline. Using your
knowledge of the efficiency of fuel cells versus gasoline engines, how many miles
would you expect a methanol-powered car could travel on a gallon of methanol?
(The density of methanol is similar to gasoline)
(A) 50 miles
(B) 20 miles
(C) 5 miles
(D) 1 mile

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Introduction for Question 4:

When considering alternative energy sources for vehicles, hydrogen emerges as a promising candidate. However, the way hydrogen is utilized in vehicles can vary, leading to distinct environmental and operational outcomes. In this context, it's crucial to understand the fundamental differences between burning hydrogen in a car-type engine and oxidizing it in a fuel cell.

Introduction for Question 5:

Hydrogen has been touted as a clean and sustainable alternative to gasoline in the quest for greener transportation options. While hydrogen-powered automobiles offer several advantages, they also come with their set of challenges and disadvantages. One of these drawbacks poses a significant hurdle for hydrogen's widespread adoption in the automotive industry.

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