Use of Hydrogen as a Fuel

Q.

In an experiment, 4.5 kg of a fuel was completely burnt. The heat produced was measured to be 180, 000 kJ. Calculate the calorific value of the fuel.

Q.

What are the advantages of using hydrogen as a fuel?

1. High calorific value

2. Environmental friendly

3. Better alternative of fossil fuels

4. Poisonous in nature

Q.

The amount of energy released during the combustion of a unit mass of fuel is called____.

1. latent heat

2. calorific value

3. internal energy

4. specific heat

Q.

Write true or false for the following statement:

Calorific value is the amount of heat produced by 1 gram of fuel.

1. True
2. False

Q.

Acetylene decomposes into carbon and hydrogen when subjected to ___ .

1. Sunlight

2. Laser Light (1700K-3400K)

3. Sound Energy

4. Pressure

Q.

INDUSTRIAL USES OF HYDROGEN SULFIDE

Q. A fuel cell uses oxygen and gas as fuel.

1. hydrogen
2. nitrogen
3. chlorine

Q.

Which of the following are the uses of hydrogen?

1. Production of fuel gases

2. Manufacture of ammonia and methanol

3. Conversion of unsaturated to saturated oils

4. Rocket fuel and fuel cells

Q.

The substance which accelerates the speed of a reaction without itself undergoing any change is called a

1. catalyst

2. pollutant

3. fuel

4. none of the above

Q.

What are the demerits of using hydrogen as a fuel cell?

1. High calorific value

2. Poisonous nature

3. Explodes in air

4. Storage and distribution

Q. Which of the following is/are the advantage(s) of using hydrogen as an automobile fuel?

1. The amount of energy released per unit weight of the fuel is very low.
2. The combustion hydrogen does not produce polluting emissions of CO, $C{O}_2$, oxides of nitrogen, and sulphur, aldehydes etc.
3. The technology required for use of hydrogen fuel is simple and cost effective.
4. The fuel cells using catalytic combustion of hydrogen have efficiency of 70-80 percent.

Q. Which among the given gases are present in the fuel cells used in spacecraft?

1. Hydrogen gas
2. Oxygen gas
3. Chlorine gas
4. Nitrogen gas

Q.

Define calorific value.

Q. Which amongst the following is the best fuel?

1. Methanol
2. Carbon monoxide
3. Carbon dioxide
4. Hydrogen

Q.

Hydrogen-oxygen fuel cells are used in submarines.

1. True

2. False

Q. A fuel cell uses oxygen and gas as fuel.

1. hydrogen
2. nitrogen
3. chlorine

Q. The downsides of using hydrogen as a fuel are:

1. less availability
2. storage is complicated
3. pollution during production
4. all of above

Q. Which amongst the following is the best fuel?

1. Hydrogen

2. Methanol

3. Carbon monoxide

4. Carbon dioxide