Math and Arithmetic

If a process is carried out at constant pressure P and the volume V of the system decreases then V is negative positive and the work w is negative positive zero?

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2013-10-26 02:12:06
2013-10-26 02:12:06

In this case, V would be negative, and work w would be positive.

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as the pressure decreases the volume of gas increases at constant temperature


That is false. Volume increases when pressure decreases. From Boyle's law, P1V1 = P2V2 at constant temperature, or PV = a constant at constant temperature.



At constant temperature p.V=constant, so pressure INcreases when decreasing the volume.


If the temperature is held constant the pressure of a gas will increase if the volume decreases.


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Decreases. This describes Boyle's Law: @ constant temperature: P1V1 = P2V2.


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Assuming the volume is kept constant, the pressure will also decrease in this case.


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