Chemistry

I have a special, ideal balloon. This balloon does not exert any pressure on the gas inside it. I start by taking the balloon and inflating it to 4 L in Wilmington DE last night. The weather channel said that the temperature was 45 degrees F and the...

pressure was 30.27 inches of Hg.

First I take this balloon scuba diving and go down to a depth of 100 ft where the pressure is 7 atm. and the temperature is 54. 2 F. What is the volume of the balloon?

I have no idea how to start this problem. It's driving me crazy. Help anyone?

Is this a trick question?

Maybe I missed something, but I don't see that the volume is different.

If you put 4L (of something) into the balloon at a certain external air pressure, at 1 atm, and then you bring it somewhere that has 7 atm and a higher temp, physics leads you to a certain answer.

Let's say we're using regular air to fill that balloon to 4L at 45deg and 1 atm...
We go down 100ft under water... We now have 7 atm, which would compress the balloon, and in turn compress its contents. We also add that the temp has been raised to 54.2 deg, another factor that caused the air in the baloon to expand...

A logical comparison --- your lungs --- they have the same volume capability on land or under water, but the pressure exerted on them under water simply makes it harder to use that full volume --- but the volume available there is the same.

That's why I think that there's something missing from your question --- a piece of the puzzle that would get you to the answer...