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Smitheyyy973
31.01.2021 •
Chemistry
a cylinder with a movable piston contains 250 cm3 air at 10°C. if the pressure is kept constant, at what temperature would you expect the volume to be 150 cm3?
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Ответ:
T₂ = 169.89 K
Explanation:
Given data:
Initial volume = 250 cm³
Initial temperature = 10°C (10+273.15 K = 283.15 K)
Final temperature = ?
Final volume = 150 cm³
Solution:
The given problem will be solve through the Charles Law.
According to this law, The volume of given amount of a gas is directly proportional to its temperature at constant number of moles and pressure.
Mathematical expression:
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
T₂ = T₁V₂/V₁
T₂ = 283.15 K × 150 cm³ / 250 cm³
T₂ = 42472.5 K. cm³ / 250 cm³
T₂ = 169.89 K
Ответ:
To do this, we know that
Deg F=deg C(9/5)+32
By Subtituting the given formula and the required unit, we get
Deg F= 2966 deg C(9/5)+32
Symplifying further,
DegF=5338.8+32=5370.8 deg F
For Deg C to Kelvin
We got the formula,
K=degC+273.15=2966+273.15
Simplifying Further,
K=3239.15 K