destroyer chem #92: P and T are inversely or directly related?

[Dentalicous1234]

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I don't get why it says increase.

By using PV=nRT, P and V are inversely related and V and T are directly related therefore shouldn't P and T be inversely related?

How come if volume is constant and temp increases the pressure increases too? shouldn't pressure decrease?

thank you in advance 🙂

 

[Streetwolf]

Inversely related means as one goes up the other goes down. Directly related means they both go up or down together.

So V and T are directly related. If you double the V, the T is doubled to balance the sides (what you do to one side you do to the other).

P and T are directly related for the same reason.

 

[HeatingHomer]

I don't get why it says increase.

By using PV=nRT, P and V are inversely related and V and T are directly related therefore shouldn't P and T be inversely related?

How come if volume is constant and temp increases the pressure increases too? shouldn't pressure decrease?

thank you in advance 🙂

The easiest way to remember this is as follows:

Components on the same side of the equal sign are inversely related.
Components on opposite sides of the equal sign are directly related.

 

[Dentalicous1234]

okay this makes sense. I was looking too much into it and getting myself confused. Thanks for clearing it up 🙂

 

[HenryH]

So if the temperature increases, then the pressure increases, too? I thought it was the othe way around (temp. increases, then pressure must decrease)?

 

[red88m]

The easiest way to remember this is as follows:

Components on the same side of the equal sign are inversely related.
Components on opposite sides of the equal sign are directly related.

I like!

 

[red88m]

So if the temperature increases, then the pressure increases, too? I thought it was the othe way around (temp. increases, then pressure must decrease)?

PV=nRT
temp and pressure are on opposite sides of the equation, so they're directly related- P increases, then so does T

 

[Streetwolf]

The easiest way to remember this is as follows:

Components on the same side of the equal sign are inversely related.
Components on opposite sides of the equal sign are directly related.

Not always...

If you have AB/C = D/E

A is directly proportional to C and D
A is inversely proportional to B and E
B is directly proportional to C and D
B is inversely proportional to A and E
C is directly proportional to A, B, and E
C is inversely proportional to D
D is directly proportional to A, B, and E
D is inversely proportional to C
E is directly proportional to C and D
E is inversely proportional to A and B

Get it?

Because AB/C = D/E can be rewritten as ABE = CD. Then it's easier to see.