2009/10/03

Email question...

I am having problems figuring out the questions that give volume, Temp, and Pressure. Like for example number 10 on fall 08 exam 2a, a 2.65 L steel tank contains an ideal gas at 15.83 degrees C and 1.15 atm. what is the temp if the pressure changes to 1.48 atm? I tried using the formula P1V1/T1 = P2V2/T2 and I'm having no luck getting an answer. How do I figure this problem?

That approach is close, but if this is a rigid steel tank then the volume is probably not going to change. From the comparative form of the ideal gas law, V and n cancel (because they don't change), so we're left with P1/T1 = P2/T2. Plugging in values from the problem:
(1.15atm) / (288.98K) = (1.48atm) / T2
T2 = 371.90K = 98.75 degC

1 comment:

  1. Can you post the format for the hand in, like u did for the lab report??????

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