# Mixture formula

1. May 20, 2006

What is the mixture formula when combining two or more fluids?
Thanks
Pavdarin

2. May 20, 2006

### Hootenanny

Staff Emeritus
Do you mean the rate of diffusion?

~H

3. May 20, 2006

sorry for not beign specific before hand
i mean't the mixture formula of heat difference for subnstances of the same phase

4. May 20, 2006

### Hootenanny

Staff Emeritus
Sorry, I don't quite understand. Do you have a specific example?

~H

5. May 20, 2006

umm.....
if i have 1 kg of water at 100 degrees and 10 kg of water at zero, what formaula or series of formulas would i use to to calculate the final temperature

6. May 20, 2006

### Hootenanny

Staff Emeritus
Ahh, you would simply use the equation for specific heat capacity $\Delta Q = mc\Delta\theta$. You would have to use simultaneous equations. HINT: The energy lost by the water at 100 degrees must be equal to the energy gained by the water at zero degrees.

~H

7. May 20, 2006

k thanks hootenanny, sorry for the confusion

8. May 20, 2006

### Hootenanny

Staff Emeritus
No problem, I was worried for a moment then because I'd never heard of such a formula

~H