Why are major gases in atmospheric composition identified by volume percentage rather than only by mass?
Answer and explanation
Correct answer: Because volume proportion is the common basis to understand gases in the atmospheric mixture
The governing concept is the composition of a gas mixture, commonly expressed as volume fraction or, under comparable temperature and pressure, mole fraction. Volume percentage makes the relative abundance of gases easy to compare, so nitrogen and oxygen can be described consistently in dry air. Mass can also be measured, but it is not the usual classroom basis here. Thus A is correct; B, C and D are false.
Frequently asked questions
What is the correct answer to this question?
Because volume proportion is the common basis to understand gases in the atmospheric mixture
Why is this the correct answer?
The governing concept is the composition of a gas mixture, commonly expressed as volume fraction or, under comparable temperature and pressure, mole fraction. Volume percentage makes the relative abundance of gases easy to compare, so nitrogen and oxygen can be described consistently in dry air. Mass can also be measured, but it is not the usual classroom basis here. Thus A is correct; B, C and D are false.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.
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