In order to stay within safety limits a manufacturer cautions that the gas in a cylinder should not exceed a pressure of 1250psi. If the gas in the cylinder exerts a pressure of 950psi at 27 degrees C, the maximum temp. the cylinder can be exposed to without exceeding the recommended pressure is _____ degrees.
The correct answer is 122 Degrees...but how the world do you get it?!
2006-10-16 12:35:25 · 2 answers · asked by Travis S 2 in Science & Mathematics ➔ Chemistry
where did the v=2.625 come from?
2006-10-16 12:53:24 · update #1
Its all about the Ideal Gas Law. PV=nRT
For 950 psi, 27 deg C (300 K), n=1, and R=8.314, V=2.625.
Now using this data, plug in your max pressure and the temp should be 122 deg C
2006-10-16 12:43:23 · answer #1 · answered by Anonymous · 0⤊ 0⤋
p2/T2 = p1/T1 (V = const.), so:
T2 = T1*p2/p1 (T1 = 27 oC + 273 = 300 K)
T2 = 300*1250/950, T2 = 395 K (approx.) or 395 - 273 = 122 oC
2006-10-16 19:49:11 · answer #2 · answered by Dimos F 4 · 0⤊ 0⤋