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Author Topic:   Pressure/Temperature Problem
Percy
Member
Posts: 20099
From: New Hampshire
Joined: 12-23-2000
Member Rating: 4.2


Message 1 of 5 (540833)
12-29-2009 12:37 PM


The formatting made it hard to tell what you were trying to say in your email, but when calculating the effect of temperature on pressure you can use Charles Law:

You gave these values:

Plugging in the values:

Multiplying both sides of the equation by P2 and switching sides around the equals sign:

Now we can multiply both sides by 499.2:

And now we can divide both sides by 546:

And doing the math gives us:

Which is roughly the same answer you got, except that you were a little off because you rounded 39.2 into 39, so it looks like your method was correct.


Replies to this message:
 Message 2 by Taz, posted 12-29-2009 2:55 PM Percy has responded

  
Percy
Member
Posts: 20099
From: New Hampshire
Joined: 12-23-2000
Member Rating: 4.2


Message 3 of 5 (540934)
12-30-2009 6:56 AM
Reply to: Message 2 by Taz
12-29-2009 2:55 PM


You may be right, I don't know. These are multiple choice tests, and the answers tend to be in round numbers, but I don't have a copy of this test.

--Percy


This message is a reply to:
 Message 2 by Taz, posted 12-29-2009 2:55 PM Taz has not yet responded

  
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