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teggenspiller
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Homework Statement
The temperature of a fixed mass of gas drops from 127 C to 27 oC under constant pressure. Find the ratio of the new volume to the original volume.
C. 3:4
D. 4:3
E. 1:1
A and B arent here because i have gotten them wrong.
Homework Equations
Ideal gas law: PV= nRT
Pressure in Pa, Volume in Liters, n as in moles, R is a constant (0.0821) T= Temp Kelvin
Looking for the ratio of the final V to the initial V
The Attempt at a Solution
P= constant, n= constant, R= constant, so V= nRT/P and if p, n and R are constant then V just = T then right?
so V/T= V/T
And V/ 127 = V/27
what do i do here? 127/27 = 4.7
how do i get a 'ratio'?? between the two?