Question
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If Pair is 104.6 kPa at 27.7 °C, what is Pair (in kPa) at a temperature of 31.0 °C?

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Step 1

The Gay Lussac’s law is used to describe the relationship between the pressure and the absolute temperature of a fixed amount  of  gas provided the volume remains the same. It states that the pressure of the gas is directly proportional to its absolute temperature. This means that as the pressure increases, temperature will also increase and when the pressure will decrease , the temperature will also decrease. The equation below has been derived from this law. It can be written as follows:

Where P1 is the pressure of the a gas at a temperature T1 and P2 is the pressure of the gas at a temperature T2 .

Step 2

Since air is a mixture of vari...

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