A sample of oxygen occupies a volume of 150 cm3 at 72 C. What will be volume of oxygen when the temperature drops to 2 C?
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Ответ:
V₂ = 119.59 cm³
Explanation:
Given data:
Initial volume = 150 cm³
Initial temperature = 72°C
Final volume = ?
Final temperature = 2°C
Solution:
Initial temperature = 72°C (72 +273.15 K = 345.15 K)
Final temperature = 2°C (2 + 273.15 k = 275.15 K)
Solution:
According to the Charles Law.
V₁/T₁ = V₂/T₂
V₁ = Initial volume
T₁ = Initial temperature
V₂ = Final volume
T₂ = Final temperature
Now we will put the values in formula.
V₁/T₁ = V₂/T₂
V₂ = V₁T₂/T₁
V₂ = 150 cm³ × 275.15 K /345.15 K
V₂ = 41272.5 cm³.K / 298 K
V₂ = 119.59 cm³
Ответ:
i would say use 2
Explanation: