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A bicycle tire has a volume of 1.0 L at 22°C. If the temperature of the tire is increased to 52°C, what is the resulting volume of the tire? Provide your answer using the correct number of significant figures.

Use Charles's Law: [tex]\(\frac{V_1}{T_1} = \frac{V_2}{T_2}\)[/tex]

[tex]\(\square\)[/tex]


Sagot :

Sure, let's solve the given problem step-by-step using Charles's Law. Charles's Law states that for a fixed amount of gas at a constant pressure, the volume of the gas is directly proportional to its absolute temperature. The formula is:

[tex]\[ \frac{V_1}{T_1} = \frac{V_2}{T_2} \][/tex]

Where:
- [tex]\( V_1 \)[/tex] is the initial volume of the gas.
- [tex]\( T_1 \)[/tex] is the initial absolute temperature in Kelvin.
- [tex]\( V_2 \)[/tex] is the final volume of the gas.
- [tex]\( T_2 \)[/tex] is the final absolute temperature in Kelvin.

Given:
- [tex]\( V_1 = 1.0 \, \text{L} \)[/tex]
- [tex]\( T_1 = 22^{\circ} \text{C} \)[/tex]
- [tex]\( T_2 = 52^{\circ} \text{C} \)[/tex]

We need to find [tex]\( V_2 \)[/tex], the final volume of the tire.

First, we need to convert the temperatures from Celsius to Kelvin. The conversion formula is:
[tex]\[ T (\text{K}) = T (\text{C}) + 273.15 \][/tex]

So, the initial temperature [tex]\( T_1 \)[/tex] in Kelvin is:
[tex]\[ T_1 = 22 + 273.15 = 295.15 \, \text{K} \][/tex]

And the final temperature [tex]\( T_2 \)[/tex] in Kelvin is:
[tex]\[ T_2 = 52 + 273.15 = 325.15 \, \text{K} \][/tex]

Now, apply Charles's Law to find the final volume [tex]\( V_2 \)[/tex]:
[tex]\[ \frac{V_1}{T_1} = \frac{V_2}{T_2} \][/tex]

Rearranging the equation to solve for [tex]\( V_2 \)[/tex]:
[tex]\[ V_2 = V_1 \times \frac{T_2}{T_1} \][/tex]

Substitute the known values:
[tex]\[ V_2 = 1.0 \, \text{L} \times \frac{325.15 \, \text{K}}{295.15 \, \text{K}} \][/tex]

Calculating the value:
[tex]\[ V_2 \approx 1.0 \times 1.1016432322547858 = 1.1016432322547858 \, \text{L} \][/tex]

Considering the significant figures, we notice that all the initial values [tex]\(1.0 \, \text{L}\)[/tex], [tex]\(22^{\circ} \text{C}\)[/tex], and [tex]\(52^{\circ} \text{C}\)[/tex] are given to two significant figures. Therefore, our final result should be rounded to two significant figures as well.

Thus, the final volume [tex]\( V_2 \)[/tex] of the tire, rounded to two significant figures, is:
[tex]\[ V_2 \approx 1.1 \, \text{L} \][/tex]

So, the resulting volume of the tire is [tex]\( \boxed{1.1} \, \text{L} \)[/tex] when the temperature is increased to [tex]\( 52^{\circ} \text{C} \)[/tex].