What is one of the main challenges in using hydrogen as a fuel?
We Finally Found a Green Use for Coal

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Science
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11th Grade - University
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Hard
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Its high production cost
Its storage difficulty
Its environmental impact
Its low energy output
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is hydrogen difficult to store as a liquid?
It requires high temperatures
It is highly flammable
It reacts with container materials
It needs to be cooled to extremely low temperatures
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the proposed method for storing hydrogen using coal?
Burning coal to release hydrogen
Pumping hydrogen into natural coal beds
Using coal as a catalyst for hydrogen production
Converting coal into hydrogen
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What gas is commonly found adsorbed in coal beds?
Methane
Nitrogen
Carbon dioxide
Oxygen
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of coal was found to adsorb hydrogen the best in depleted methane reservoirs?
Anthracite
Bituminous
Sub-bituminous
Lignite
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What factor affects the efficiency of coal beds as hydrogen storage?
The depth of the coal bed
The age of the coal
The local temperature
The color of the coal
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a significant finding from the Penn State study on coal beds?
Coal beds are not suitable for any gas storage
Diffusivity of hydrogen is higher than methane
Hydrogen cannot be stored in coal beds
All coal types are equally effective
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