# Thermo Physics/Boyles Law

1. Apr 4, 2009

### WannabChemist

1. The problem statement, all variables and given/known data

How do I write equations on a computer?

I need some help with some Physics equations. I am about to take a course. I have very poor math skills, so I am hoping to improve my confidence, while learning some interesting equations.

I have included Boyles Law as it is the Boyle Law equation that helped me realise that I am missing something. I have studied Earth Science so far. I start chemistry/Physics next Trimester.

2. Relevant equations

My first question regards the equation: p = po + pgh

p = Pressure
o = angle (I think)
h = height (I think)

I don't know what the g stands for.

I infer that the equation is saying: pressure = pressure x angle + pressure x g x height

This makes no sense to me

The other question regards the following pV = K1.

This is known as Boyles law. It explains the behavior of gas.

I understand Boyles Law, but not why it is expressed with that equation. If I were to read that equation without knowing anything about Boyles Law I would read it as the following:

3. The attempt at a solution

Assume p (pressure) = 5pa and V (volume) = 4m3.

K1 = Constant

5 x 4 = Constant (it actually equals 20?!)

Which in my view makes no sense. I learnt at high school if two letters are beside each other with no symbol, than you multiply them. Perhaps i'm mistaken?

2. Apr 5, 2009

### rl.bhat

My first question regards the equation: p = po + pgh

p = Pressure
o = angle (I think)
h = height (I think)

po is initial pressure. g is acceleration due to gravity.

pV = K1. for constant temperature pV is constant. K ar K1 does not make any difference.