Question

Which of these expressions are correct variations of the Combined Gas Law?

Answer 1

Both

Step-by-step explanation:

The combined gas law is also known as the general gas law.

From the ideal gas law we assume that n = 1;

So;

PV = nRT

and then;

`(P_(1)V_(1) )/(T_(1) )` =
`(P_(2)V_(2) )/(T_(2) )`

If we cross multiply;

P₁V₁T₂ = P₂V₂T₁

So;

T₁ =
`T_(2) (P_(1)V_(1) )/(P_(2) V_(2) )`

Also;

V₂ =
`V_(1) (P_(1) T_(2) )/(P_(2) T_(1) )`

So from the choices both are correct