Day Six

Gases
Far apart-cooling of balloon
Density different- based observations molecular determines weight
Lots of movement- stimulation
Diffusion- bumping into one another

Ideal Gas Law
PV = nRT

P= pressure
V= volume
n= moles of gas
T= temperature
R= gas constant

Balloon
Volume- up (expands)  Direct Relationship Temp- up
Volume- up (expands) Inverse Relationship Pressure- decreased
Volume- up (expends) Direct Relationship Add Molecules- up

PV/nT = nRT/nT = PV/nT= R
P1V1/n1T1 = P2V2/n2T2  (condition 1 and 2)

Question:
P1 = 32 psi
T1 = 90 degrees F

90 degrees F --> 32.2 degrees C--> 305.2 K
-20 degrees F--> 244.3 K

32 psi/305.2 K = ?/244.3 K = 32psi (244.3K)/305.2 K = x psi (305.2 K)/ 305.2 K = 25.6 psi