hydrogen as an energy carrier (pros)
△ because h₂ gas can be stored in pressurized tanks, it can be transported for use creating electricity later, in a different location.
- unlike solar, hydro, and wind where the electricity must be used as soon as its generated & relatively closely to the location of generation
△ can also be used as a fuel for vehicles (replacing gasoline) or to create ammonia for fertilizer, or in the chemical industry
- as a gasoline replacement, it emits no air pollutants (no/pm/co) and only h₂o (tech - a ghg to co₂
- manufacture of many different industrial chemicals requires h₂ gas
- can be stored as liquid or gas, making it easy to transport
multiple - choice question
identify all the advantages of using h₂ gas in hydrogen fuel cells
□ can be used as a gasoline replacement
□ the h₂ can be stored until we are ready to create electricity from it.
□ it emits no air pollutants when burned
□ when burned it produces water vapor (a greenhouse gas)
□ hard to transport since it cannot be stored as a liquid or gas.
□ can be stored as a liquid or gas so its easy to transport

Question

hydrogen as an energy carrier (pros)
△ because h₂ gas can be stored in pressurized tanks, it can be transported for use creating electricity later, in a different location.
 - unlike solar, hydro, and wind where the electricity must be used as soon as its generated & relatively closely to the location of generation
△ can also be used as a fuel for vehicles (replacing gasoline) or to create ammonia for fertilizer, or in the chemical industry
 - as a gasoline replacement, it emits no air pollutants (no/pm/co) and only h₂o (tech - a ghg to co₂
 - manufacture of many different industrial chemicals requires h₂ gas
 - can be stored as liquid or gas, making it easy to transport
multiple - choice question
identify all the advantages of using h₂ gas in hydrogen fuel cells
□ can be used as a gasoline replacement
□ the h₂ can be stored until we are ready to create electricity from it.
□ it emits no air pollutants when burned
□ when burned it produces water vapor (a greenhouse gas)
□ hard to transport since it cannot be stored as a liquid or gas.
□ can be stored as a liquid or gas so its easy to transport

Accepted Answer

# Brief Explanations:
Match each option to the listed pros of hydrogen as an energy carrier from the left content:
1. "can be used as a gasoline replacement" aligns with the bullet point "Can also be used as a fuel for vehicles (replacing gasoline)".
2. "the H₂ can be stored until we are ready to create electricity from it" aligns with "Because H₂ gas can be stored in pressurized tanks, it can be transported for use creating electricity later, in a different location".
3. "it emits no air pollutants when burned" aligns with "As a gasoline replacement, it emits no air pollutants (NOₓ/PM/CO) and only H₂O (tech. a GHG) no CO₂".
4. "can be stored as a liquid or gas so it's easy to transport" aligns with "Can be stored as liquid or gas, making it easy to transport".
The other two options contradict the provided pros, so they are incorrect.

# Answer:
- can be used as a gasoline replacement
- the H₂ can be stored until we are ready to create electricity from it
- it emits no air pollutants when burned
- can be stored as a liquid or gas so it's easy to transport

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