chemistry question help

Question

The temperature of a sample of fluorine gas is changed without changing its volume, causing a change in pressure from 114.6 kPa to 133.9 kPa. If the starting temperature was 210 °C, what is the final temperature in degrees Celsius?

Answer 1

Hello, Molly,

Use the gas law relationship:

P1V1/T1 = P2V2/T2

Solve for T2, the variable in question:

T2 = T1(V2/V1)(P2/P1)

The volumes are the same (no change), so V2/V1 reduces to "1." Be sure all temperatures are entered as Kelvin when using the gas laws.

We are now left with:

T2 =T1(V2/V1)(P2/P1)

T2 = (483.15K)(133.9/114.6) = 564.5K

Bob