Ideal gas Definition and 856 Threads

Hey guy, I didnt think i would ever have to deal with gas laws after i got out of AP chem, but it has showed up again in physics. Tell me what to do. Suppose the volume of a balloon decreases so that the temperature of the balloon decreases from 280K to 240K and its pressure drops from...

Hi, I'm having some trouble doing my homework for Physics. I would appreciate it if anybody would help me or lead me in the right direction. Thank you. 1. Gas is confined in a tank at a pressure of 1.0x18^8 Pa and a temperature of 15.0 degrees Celcius. If half the gas is withdrawm and the...

Hi, I would appreciate any help with this: A monatomic ideal gas is used as the working substance for the Carnot cycle. Processes A => B and C => D are isothermal, while processes B => C and D => A are adiabatic. During process A => B, there are 400 J of work done by the gas on the...

I have a few homework problems on the Ideal Gas Laws, was wondering if someone could help me out with a few of the problems. 1) Hemoglobin has a molecular mass of 64 500 u. Find the mass (in kg) of 873 molecules of hemoglobin. Here's what I did: (64500 g/mol/6.022x10^23 mol^-1)(873...

I have the question, "Heat is added to an ideal gas at 20 degrees C. If the internal energy of the gas increases by a factor of three - what is the final temperature (in degrees C) round off to the nearest whole number?" I know U=3/2NkT or U= 3/2nRT I see I have 3U and I need to convert 20...

An unknown number of Helium atoms are in a 1 liter container at an unknown temperature. The gas is made to expand such that it's final volume is 4 liters and pressure rises 'in direct proportion to its volume'. 1. does 'in direct proportion to it volume' mean Pf = Pi * Vf/Vi or should there...