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Can someone give me some guidance on how to calculate the work or energy required to create a vacuum.

For example, I would like to create a 2.5psi vacuum in a tube of a specific length and diameter using a pneumatic cylinder to remove the air.

How would I go about calculating the energy required to do that please?

From that answer I want to calculate the power of an electric motor required to perform that task.

Thanks,

Arnak

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# Formula for Work to create a vacuum.

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