Chemistry
Chemistry of Gases and Applications
1,190 Questions
The chemistry of gases covers atmospheric composition, noble gases, and various applications of gas compounds in industrial and biological processes. Understanding the properties of common gases, their reactions, and environmental occurrences is vital for general science sections. Use these questions to practice identifying gases and their specific uses.
Atmospheric gasesNoble gasesGas applicationsChemical compounds
Chemistry of Gases and Applications Questions
What is the primary method used to store ammonia for energy storage purposes?
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Pressurized tanks
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Underground caverns
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Salt domes
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All of the above
D
Correct answer
Explanation
Ammonia can be stored in pressurized tanks, underground caverns, salt domes, or other suitable geological formations.
What is the primary form of ammonia used in energy storage applications?
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Anhydrous ammonia
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Aqueous ammonia
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Ammonia gas
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None of the above
A
Correct answer
Explanation
Anhydrous ammonia, which is ammonia in its pure form without water, is the primary form used in energy storage applications.
What are the main byproducts of Plasma Gasification?
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Syngas
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Solid residues
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Vitrified slag
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All of the above
D
Correct answer
Explanation
Plasma Gasification produces various byproducts, including syngas (a mixture of hydrogen and carbon monoxide), solid residues, and vitrified slag (a non-hazardous glass-like material).
Which of the following is NOT a common type of ceramic firing atmosphere?
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Oxidizing
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Reducing
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Neutral
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Vacuum
D
Correct answer
Explanation
Vacuum is not a common ceramic firing atmosphere. Oxidizing, reducing, and neutral are more traditional and widely used.
What type of gas was commonly used to inflate early airships?
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Hydrogen
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Helium
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Nitrogen
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Oxygen
A
Correct answer
Explanation
Hydrogen was initially used due to its low density and high lifting capacity, but its flammability posed significant safety risks.
What is the name of the type of plasma that is used in fluorescent lights?
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Mercury plasma
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Neon plasma
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Argon plasma
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Krypton plasma
A
Correct answer
Explanation
Mercury plasma is the type of plasma that is used in fluorescent lights. It is produced by passing an electric current through mercury vapor.
What is the name of the type of plasma that is used in plasma displays?
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Xenon plasma
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Neon plasma
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Argon plasma
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Krypton plasma
A
Correct answer
Explanation
Xenon plasma is the type of plasma that is used in plasma displays. It is produced by passing an electric current through xenon gas.
What is the name of the type of plasma that is used in plasma cutters?
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Argon plasma
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Oxygen plasma
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Nitrogen plasma
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Hydrogen plasma
A
Correct answer
Explanation
Argon plasma is the type of plasma that is used in plasma cutters. It is produced by passing an electric current through argon gas.
What is the name of the type of plasma that is used in plasma torches?
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Hydrogen plasma
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Oxygen plasma
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Nitrogen plasma
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Argon plasma
A
Correct answer
Explanation
Hydrogen plasma is the type of plasma that is used in plasma torches. It is produced by passing an electric current through hydrogen gas.
Which molecule is considered the most abundant in the interstellar medium?
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Hydrogen (H2)
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Carbon Monoxide (CO)
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Water (H2O)
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Methane (CH4)
A
Correct answer
Explanation
Hydrogen (H2) is the most abundant molecule in the interstellar medium, comprising approximately 90% of its mass.
Which of the following is a common gas found in comets?
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Carbon dioxide
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Methane
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Ammonia
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Oxygen
A
Correct answer
Explanation
Carbon dioxide is a common gas found in comets, along with other volatile compounds such as methane and ammonia.
Which plasma spectroscopy technique is commonly used for the analysis of gases?
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Flame atomic absorption spectroscopy (FAAS)
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Graphite furnace atomic absorption spectroscopy (GFAAS)
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Inductively coupled plasma mass spectrometry (ICP-MS)
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Emission spectroscopy
D
Correct answer
Explanation
Emission spectroscopy is commonly used for the analysis of gases, where the sample is introduced into a plasma and the emitted light is analyzed to determine the elemental composition of the gas.
What is the primary gas used in scuba diving tanks?
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Nitrogen
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Oxygen
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Helium
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Carbon Dioxide
A
Correct answer
Explanation
Nitrogen is the primary gas used in scuba diving tanks because it is relatively inert and does not cause significant physiological effects at the depths typically encountered by recreational divers.
Which underwater exploration technique involves divers breathing a mixture of helium and oxygen to reach extreme depths?
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Saturation Diving
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Free Diving
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Trimix Diving
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Scuba Diving
C
Correct answer
Explanation
Trimix Diving involves using a breathing gas mixture containing helium, oxygen, and nitrogen to allow divers to reach greater depths while minimizing the risk of decompression sickness.
Which underwater exploration technique involves divers breathing a mixture of oxygen and nitrogen to reach moderate depths?
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Saturation Diving
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Free Diving
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Nitrox Diving
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Scuba Diving
C
Correct answer
Explanation
Nitrox Diving involves using a breathing gas mixture containing a higher percentage of oxygen and a lower percentage of nitrogen compared to regular air, allowing divers to stay underwater for longer periods.