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Answer:
The order of increasing speed is: Cl₂ < CO₂ < Ar < N₂ < H₂.
Explanation:
- Thomas Graham found that, at a constant temperature and pressure the rates of effusion of various gases are inversely proportional to the square root of their masses.
<em>∨ ∝ 1/√M.</em>
where, ∨ is the rate of diffusion of the gas.
M is the molar mass of the gas.
Molar mass of N₂ = 28.0 g/mol.
Molar mass of H₂ = 2.0 g/mol.
Molar mass of Cl₂ = 70.9 g/mol.
Molar mass of CO₂ = 44.0 g/mol.
Molar mass of Ar = 39.94 g/mol.
∵ Molar mass of Cl₂ > Molar mass of CO₂ > Molar mass of Ar > Molar mass of N₂ > Molar mass of H₂.
<em>Remember that ∨ ∝ 1/√M.</em>
∴ The speed of H₂ > N₂ > Ar > CO₂ > Cl₂.
<em>So, the order of increasing speed is: Cl₂ < CO₂ < Ar < N₂ < H₂.</em>
Answer:
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Answer:
25.157 cm³
Explanation:
Data Given:
Mass of Sugar (m) = 40g
Density of sugar given in literature = 1.59 g/cm³
Volume of Sugar = ?
The formula will be used is
d = m/v ........................................... (1)
where
D is density
m is the mass
v is the volume
So
Rearrange the Equation (1)
d x v = m
v = m/ d ................................................ (2)
put the given values in Equation (2)
v = 40g / 1.59 g/cm³
v = 25.157 cm³
volume of 40 g of sugar = 25.157 cm³