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2. A gas sample occupies a volume of 25.0 L at 30°C and 750 torr. At what temperature in °C will the gas occupy a volume of 10.0 L at 750 torr?​

Sagot :

✏️CHARLES' LAW

[tex]\tt{\huge{\green{Solution:}}}[/tex]

The problem asks to solve for the final temperature in °C. First, we need to identify the quantities to be used. These are

V₁ = initial volume

V₂ = final volume

T₁ = initial temperature (in kelvin)

T₂ = final temperature (in kelvin)

Second, we need to identify the given values. These are

V₁ = 25.0 L

V₂ = 10.0 L

T₁ = 30°C + 273 = 303 K

Third, we need to find the final temperature in K. The final temperature in K is

[tex]T_{2} = \dfrac{T_{1}V_{2}}{V_{1}}[/tex]

[tex]T_{2} = \dfrac{(\text{303 K})(\text{10.0 L})}{\text{25.0 L}}[/tex]

T₂ = 121 K

Finally, we can now solve for the final temperature in °C is

(Note: t₂ is the final temperature in °C.)

t₂ = T₂ - 273

t₂ = 121 K - 273

[tex]\boxed{t_{2} = -152^{\circ}\text{C}}[/tex]

[tex]\\[/tex]

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