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I am Lyosha [343]
2 years ago
12

Boyle's law only works when a gas is kept at a constant temperature. Experimentally this is very tricky as changes in pressure o

r volume often affect the temperature of a gas. In a real closed piston, rapidly reducing the volume of a gas will actually increase its temperature. Where is the heat that creates this temperature change coming from?
Chemistry
1 answer:
Lady bird [3.3K]2 years ago
6 0

The heat that creates this temperature change coming from change in the internal energy of the system as per as first law of thermodynamics.

<h3>What is Boyle's law ?</h3>

A law stating that the pressure of a given mass of an ideal gas is inversely proportional to its volume at a constant temperature.

As we know, Boyle's law only works when the gas is kept at a constant temperature

Here,

When volume of gases decreased, it means work done has occurred on the system, so the work done is used for raising internal energy of the gas and the other is released as the thermal energy.

So,

According to 1st law of thermodynamics,

we know  Q =  ΔU + W  i.e, change in internal energy and work done. So this is a reason. Changing temperature occurs.

Learn more about Internal enrgy here ;

brainly.com/question/11278589

#SPJ1

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A 7.12 L cylinder contains 1.21 mol of gas A and 4.94 mol of gas B, at a temperature of 28.1 °C. Calculate the partial pressure
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Hello!

In this case, since the equation for the ideal gas is:

PV=nRT

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P_A=\frac{n_ART}{V} =\frac{1.21mol*0.082\frac{atm*L}{mol*K}*301.25K}{7.12L} \\\\P_A=4.20atm\\\\P_B=\frac{n_BRT}{V} =\frac{4.94mol*0.082\frac{atm*L}{mol*K}*301.25K}{7.12L} \\\\P_B=17.1atm

Best regards!

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