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## Main Question or Discussion Point

So here I am at work, and the go-to people for physics are away. Here is the problem I am trying to figure out:

I'm wondering how much energy it takes to compress a certain amount of

air at a certain temperature, to a certain pressure. For example, lets

say I had a 4-gallon tank of STP air and I wanted to add air until the

pressure inside the tank reached 300 kPa. How much energy, in joules,

would it require to do this?

-Dan

edit: nevermind this thread. Zz gave me a bit of help. If you want, you can still give me some help, but for now, I should be fine, unless I post here again requesting help.

I'm wondering how much energy it takes to compress a certain amount of

air at a certain temperature, to a certain pressure. For example, lets

say I had a 4-gallon tank of STP air and I wanted to add air until the

pressure inside the tank reached 300 kPa. How much energy, in joules,

would it require to do this?

-Dan

edit: nevermind this thread. Zz gave me a bit of help. If you want, you can still give me some help, but for now, I should be fine, unless I post here again requesting help.