SSC
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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finding out how much nitrogen is in a sample of air
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organic
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inorganic
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analytical
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physical
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Explanation:
Detailed explanation-1: -Answer: Air is composed of 78 percent nitrogen. Oxygen accounts for 21 percent, and the inert noble gas argon makes up 0.9 percent of the air.
Detailed explanation-2: -chemical kinetics, the branch of physical chemistry that is concerned with understanding the rates of chemical reactions.
Detailed explanation-3: -Calorimetry is the process of measuring the amount of heat released or absorbed during a chemical reaction. By knowing the change in heat, it can be determined whether or not a reaction is exothermic (releases heat) or endothermic (absorbs heat).
There is 1 question to complete.