Avogadro's number is equal to__________________?
Correct answer: B. 6.023 x 10^23 molecules/gm.mole
- A. 6.023 x 10^23 molecules/kg.mole
- B. 6.023 x 10^23 molecules/gm.mole
- C. 6.023 x 10^16 molecules/kg.mole
- D. 6.023 x 10^26 molecules/gm.mole
Explanation
One gram-mole contains approximately 6.023 × 10²³ molecules, which is Avogadro’s number. A kilogram-mole contains 1000 times as many molecules, so option A has the wrong unit conversion.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
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.
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
The value of the gas-law constant 'R' is 1.987 ?
Measurement of the amount of dry gas collected over water from volume of moist gas is based on the___________________?
1 bar is almost equal to __________________________ atmosphere?
The density of a liquid is 1500 kg/m3. Its value in gin/litre will be equal to________________?
One micron is equal to _____________ cm?
Dry air is a mixture of__________________?