Question

If four moles of a gas at a pressure of 5.4 atmospheres have a volume of 120 Liters What is the Temperature?

Answer 1

Is that how you set it up?

Answer 2

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

\[\frac{ pV }{ nR } = T\]

\[\frac{ 5.4atm*120L }{ 4.0mol*0.082mol ^{-1} L,atm, K ^{-1}} = T, \in kelvins\]

Answer 3

@Gir_16

Answer 4

ok

Answer 5

does this make sense to you @Gir_16 ?

Answer 6

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

Answer 7

@Photon336

Answer 8

@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

Answer 9

ok

Answer 10

ok

Answer 11

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

Answer 12

ok

Answer 13

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

Answer 14

kk tanks

Answer 15

np take care