If 1 Nm3 of O2 contains ‘N’ number of molecules, then how many molecules will be present in 2 Nm3 of SO2_________________?
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Answer: C. 2N
Explanation
Avogadro law states equal volumes of gases at identical conditions contain equal molecules. Doubling the volume of sulfur dioxide gas doubles the total number of constituent molecules. Since one normal cubic meter contains number of molecules two meters contain twice as many. Ideal gas laws demonstrate that physical volume is directly proportional to moles of gas. Amedeo Avogadro first proposed his molecular hypothesis in the early nineteenth century. Normal cubic meters refer to standard temperature and pressure reference conditions in engineering.
Gas phase chemical reactions require stoichiometric volume conversions based on molecular proportions. Industrial ventilation systems use volumetric gas laws to calculate pollutant dilution rates. Combustion calculations in boiler design rely on proportional volume and mole relationships. Stating the number remains n ignores the linear scaling of volume with molecular quantity. N divided by two incorrectly implies that doubling volume reduces the molecular count. Four n overestimates the proportional scaling factor for a simple doubling of volume.
- Subject
- Engineering
- Category
- Chemical Engineering
- Topic
- —
- Difficulty
- medium
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