## anonymous one year ago If four moles of a gas at a pressure of 5.4 atmospheres have a volume of 120 Liters What is the Temperature?

1. anonymous

|dw:1444169877346:dw| Is that how you set it up?

2. Photon336

yes you are correct but make sure you re-arrange the formula FIRST and then put in the numbers. Start with this formula $pV = nRT$ ask your self what are we looking for? Temperature. so we solve for T $\frac{ pV }{ nR } = T$ $\frac{ 5.4atm*120L }{ 4.0mol*0.082mol ^{-1} L,atm, K ^{-1}} = T, \in kelvins$

3. Photon336

@Gir_16

4. anonymous

ok

5. Photon336

does this make sense to you @Gir_16 ?

6. anonymous

kinda but the part near the end were it says l atm k.. would I multiply those? and bye what??

7. anonymous

@Photon336

8. Photon336

@Gir_16 those are just units, all you would have to do is divide (5.4*120)/(4*0.82) the units are just to show you that they cancel out and you're left with Temperature. let me show you

9. anonymous

ok

10. Photon336

|dw:1444171210243:dw|

11. anonymous

ok

12. Photon336

@Gir_16 as you can see all the units cancel out and we're left with temperature that's what we must find

13. anonymous

ok

14. Photon336

just remember to always solve for the variable you're looking for FIRST then put in the numbers.

15. anonymous

kk tanks

16. Photon336

np take care