Which step will decrease the pressure of a gas inside a closed cubical container? increasing the number of moles of gas decreasi
2 answers:
Answer: Decreasing the temperature inside the container will decrease the pressure of a gas inside a closed cubical container.
Explanation:
According to Gay-Lussac's Law : 'The pressure of the gas increases with increase in temperature of the gas when volume of the gas is kept constant'.
At constant volume, pressure of the gas will decrease on decreasing the temperature or vice versa.
Decreasing the temperature inside the container will decrease the pressure of a gas inside a closed cubical container.
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<em>A glass flask of volume 400 cm³ is just filled with mercury at 0°C. How much mercury will overflow when the temperature of the system rises to 80°C.</em>
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The volume of mercury that overflow is 5.376 cm³
<h3>Further explanation</h3>Given
volume of glass = 400 cm³
Δt=80 °C - 0 °C = 80
Required
overflow volume
Solution
With an increase in the temperature of the substance, objects can expand. This expansion includes volume expansion.
Can be formulated
Find volume expansion of glass and mercury
- Glass(γ = 1.2.10⁻⁵ C⁻¹)
- Mercury(γ=1.8.10⁻⁴ C⁻¹)
Overflow :
ΔV mercury - ΔV glass : 5.76-0.384 = 5.376 cm³