Thursday
May 28, 2015

Homework Help: physics (gas laws)

Posted by abby on Saturday, January 26, 2008 at 9:08pm.

I have a packet of homework so I think I may post other questions that I'm stuck on later this weekend. So thats a heads up.

This packet deals with Gas Laws.

1. Given 100 ml of dry gas measured at 37 C and 760 mmHg, what would be its volume at 60C?

I used Charle's Law and solved for V2.

So... (100/310)(333)=107.4ml

correct?

2. Given 100 ml of dry gas at 37C and 760 mmHg, what would be its volume at 60C and 800 mmHg?

I used the combined gas law and solved for V2.

So... (760)(100)(333)/(310)(800)=102ml


3. Given 325 ml of saturated gas at 760 mmHg and 25C, what would be its volume if dry at the same pressure and temperature?

I got confused when I read 'if dry' Does that mean I have to subtract something out of 760mmHg?
And would I used the combined gas law and solved for V2?

Thanks!

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