At a given temperature, which gas has the
lowest average molecular speed?
1. carbon monoxide
2. carbon dioxide
3. fluorine F2
4. nitrogen N2
5. chlorine Cl2
Chemistry Problem Help ASAP!?
2020-04-20 11:17 am
回答 (3)
2020-04-20 11:23 am
1. Molar mass of CO = 12 + 16 = 28 g/mol
2. Molar mass of CO₂ = 12 + 16×2 = 44 g/mol
3. Molar mass of F₂ = 19×2 = 38 g/mol
4. Molar mass of N₂ = 14×2 g/mol = 28 g/mol
5. Molar mass of Cl₂ = 35.5×2 g/mol = 72 g/mol
The higher the molar mass of a gas, the lower its average molecular speed is. Cl₂ has the greatest molar mass, and thus it has the lowest average molecular speed.
The answer: 5. chlorine, Cl₂
2. Molar mass of CO₂ = 12 + 16×2 = 44 g/mol
3. Molar mass of F₂ = 19×2 = 38 g/mol
4. Molar mass of N₂ = 14×2 g/mol = 28 g/mol
5. Molar mass of Cl₂ = 35.5×2 g/mol = 72 g/mol
The higher the molar mass of a gas, the lower its average molecular speed is. Cl₂ has the greatest molar mass, and thus it has the lowest average molecular speed.
The answer: 5. chlorine, Cl₂
2020-04-20 12:03 pm
The one with the largest molar mass, Cl2.
So answer 5.
So answer 5.
2020-04-20 11:24 am
Lowest speed, greatest molar or atomic mass.
收錄日期: 2021-04-18 18:28:05
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