Percentage of argon (by volume) in dry atmospheric air is about________________?
Correct answer: D. 0.94
- A. 0.09
- B. 0.3
- C. 0.57
- D. 0.94
Explanation
Dry air contains approximately 78% nitrogen, 21% oxygen, and 0.94% argon by volume. Therefore, the closest listed value is 0.94%.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Chemical Process Principles
2,710 free Chemical Process Principles MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Chemical Process Principles questions
_____________ is the process of coating the surface of steel with aluminium oxide, thereby imparting it increased resistance to corrosion & oxidation upto a temperature of 700°C ?
Normalising of a casting does not__________________?
Limestone addition in the blast furnace is done to flux _______________ present in the raw materials?
Hydrogen can be ________________?
Electrometallurgical methods of metal extraction is normally used for those metals___________________?
Austempering of steel requires it to be heated to 875°C followed by sudden cooling to 250- 525°C, thereby changing austenite to___________________?