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zalisa [80]
3 years ago
15

A 8.5 L sample is collected at 45°C. What will the volume be if the temperature is raised to 70°C? End of exam A. 9.2 L B. 13.2

L C. 7.9 L D. 5.5 L
Chemistry
1 answer:
klasskru [66]3 years ago
7 0

Answer: The correct option is A.

Explanation: To calculate the volume at the end , we use Charles's Law, which states that the volume of the gas is directly proportional to the temperature of the gas at constant pressure.

Mathematically,

V\propto T

or

\frac{V_1}{T_1}=\frac{V_2}{T_2}

  • Initial conditions:

V_1=8.5L

T_1=45^oC=(45+273)K=318K

  • Final conditions:

V_2=?L

T_2=70^oC=(70+273)K=343K

Putting all the values in above equation, we get

\frac{8.5}{318}=\frac{V_2}{343}

V_2=9.2L

Hence, the correct option is A.

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