Recent content by s.p.q.r

Hi, Great thanks for this link. It is helpful to understand why they must cool down compressors. Cheers.

I should mention that the tank that it will heat in is more of a long pipe.

HI, If you compressed 300 litres (about 12 moles) into a 3 litre cylinder which was already at 3,000 degrees C. Would the air reach this temperature in an instant? Im trying to get my head around this stuff about heat capacities and amounts of energy needed to heat materials. Please...

Hi, This ratio of 1.4, does this just mean that you divide the constant pressure capacity (1.020J/g) by 1.4?

If a sample of air had high pressure and high temperature, would it be a real or ideal gas?

Hi, Thanks for the reply. Is 1.4 per gram or mol? Also, How can you measure a gram of gas and how much is 1 mol? Cheers.

The Cp J mol is 29.19. But because I ask for constant volume, it is definitely lower then this. This is what I think. I can find no references to constant volume anywhere and unfortunately I have no teacher to ask as I study archaeology, not physics. Do you have the answer? Thanks in...

Hi I have an ongoing dispute with my mate on this one, please help to clarify this before I open up a can of whoop ass on that sorry mo-fo. 300 litres of air are compressed into a 3 litre tank. What is the heat capacity of this air? Thanks in advance.

Hi, Apart from heat and number of moles, what dictates how much a gas will expand when exposed to heat. Is it density? The density of Xenon is 5.894 g/L and the density of Helium is 0.1786 g/L does this mean that if they were both in the same conditions of volume of container, number of...

Sorry. Its heated to 25 degrees C.

Great, let's say that the entire container was 100deg C automatically. How long would it take to reach its final expansion size? And for the answer to the second question, i don't understand, could you clarify? Thanks.

Hi, Ive a couple of questions. 1) Ideal gases expand according to temperature. But how quickly does it take for it to expand to its destined size? Lets say if I had 100 moles of Argon and heated it to 373kelvins. How long would it take for it to expand to it final size? 2) To what...

Hi, Im having problems with my ideal gas equations. I am able to do the actual equation but when I comes to the answer, I have difficuly understanding. Here is an example. If i want to discover the pressure... V-1000litres n-800moles r-0.08206 t-373kelvin Pressure-? Now the answer...

Ahh, sorry guys, i was not specific enough. In the OP i did not mean that we should consider the expansion of the actual containers, but the expansion of the gas. The first response by Russ was the most accurate and what I was looking for. I will have another question regarding expanding gases...

Hi, I have 2 pressurized canisters, both are 60 litres in size. Both are filled with 120 litres of ideal gas. Canister A is heated to 100 degrees celsius (373 kelvin) and Canister B is heated to 2000 degrees celsius (2273 Kelvin). Canister B will obviously expand more than Canister A...