Advertisements
Advertisements
Questions
What do you understand by the term fuel-cell?
What is a fuel cell?
Advertisements
Solution 1
Fuel cells are devices for producing electricity from fuel in the presence of an electrolyte. Dihydrogen can be used as a fuel in these cells. It is preferred over other fuels because it is eco-friendly and releases greater energy per unit mass of fuel as compared to gasoline and other fuels.
Solution 2
The cells which convert the chemical energy of a fuel directly into electrical energy are called fuel cells. Fuels such as H2, CO, CH4, C3H8, and others are utilised in these cells to produce electrical energy. Both the products and the fuels are continuously removed and supplied. There are several different types of fuel cells. The most popular of these is the hydrogen-oxygen fuel cell.
APPEARS IN
RELATED QUESTIONS
Describe the bulk preparation of dihydrogen by the electrolytic method. What is the role of an electrolyte in this process?
How does the atomic hydrogen or oxy-hydrogen torch function for cutting and welding purposes? Explain.
What do you understand by the term syngas?
What do you understand by the term water-gas shift reaction?
Dihydrogen can be prepared on commercial scale by different methods. In its preparation by the action of steam on hydrocarbons, a mixture of \[\ce{CO}\] and \[\ce{H2}\] gas is formed. It is known as:
(i) Water gas.
(ii) Syngas.
(iii) Producer gas.
(d) Industrial gas.
Write one chemical reaction for the preparation of \[\ce{D2O2}\].
When the same amount of zinc is treated separately with an excess dilute sulphuric acid and excess sodium hydroxide, the ratio of volumes of hydrogen evolved is ______.
In preparation of which of the following, dihydrogen is not used?
Commercial hydrogen is obtained from ______.
