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like if u let me know how many u could help with at this particular moment?? and if u could help, i can post? that would be greatly appreciated :) thanks @abb0t :)
hiii!!! do u think you could help? and it says i can't message u since ur not my fan lol :P
I can help with a few while I eat, I have to do some stuff and i need 2 focus on it so I won't use my computer. So ask away.
okay!! so do u think u can just help with 5 then? :)
It depends on the question and what it requires. But ask the questions that you need the most help on to get those out of the way.
okay! they're about the behavior of gases... do u understand that stuff?
Gases? Is this for general chemistry of physical chemistry?
general i think..
its like i kinda need help checking cuz I'm not too sure :/ hahaha
What's the question...
okay lemme post them :) one sec!!
Post the ones you need the most help... I can help you with the ones you are "unsure" about another day since you have an idea of how to do them...
#1: When you squeeze an air-filled balloon on all sides, what happens inside? A. The air molecules remain in the same place. B. The air molecules move more slowly. C. The air molecules move closer together. D. The air molecules move farther apart. **my answer: C. they move closer together... is that right? :)
okay!! i just need help with these 5 right now :)
posting the rest!!
#2: Detectors in the walls of four containers (A-D) count the number of collisions between gas molecules and the surfaces of the containers. The detectors count 10, 15, 20, and 30 collisions per second for containers A, B, C, and D, respectively. Which container has the lowest pressure? A,B,C, or D? **my answer: A is that right?
Well, for that, the molecules move closer together. That's almost obvious. If you have a box and you put two cats inside, and you squeeze the box. The cats move closer together and eventually become squished. so, yes. "C" is the answer for #1.
#3: A bottle of perfume is opened at one end of a room. A person sitting at the other end smells the perfume within a few minutes. Which of the following explanations is true? A. The molecules of perfume moved directly from the person to the perfume bottle. B. The molecules of perfume moved randomly in all directions, but the overall movement was from the bottle to the person. C. The molecules of perfume moved randomly in all directions, but the overall movement was from the person to the bottle. D. The molecules of perfume moved directly from the perfume bottle to the person. **my answer: B is that correct?
ohhh i see haha that IS obvious lol :P what about 2 and 3?
Yes. "A" is correct. Less molecules collide.
#4: You have four 22.4 L fixed-volume containers at STP, filled with the following gases: 1 mol CH4, 2 mol H2, 1 mol C2H5, and 3 mol He. Which of the gases will exhibit the highest pressure? Note that 1 mole of gas at STP occupies 22.4 L. A. 1.5 mol CH4 B. 2 mol H2 C. 1 mol C2H5 D. 3 mol He **my answer: D. 3 mol He is that right?
awesome!! :) posting the last one now :)
Um, you have B and C as the same answers?
#5: Which of the following actions demonstrates compression of a gas? A. inflating an expanding balloon B. turning on an electric fan C. exhaling air from your lungs D. lighting a fire ***idk this one :( but if i had to guess, i would say A??? idk what do u think?
oh for #3, B is from the bottle to the person and C is person to the bottle :)
i thought it was the same at first as well! lol
And yes, that makes sense. It does move randomly, but overall to the person, so yeah. To the person. Since you squeeze it and it shoots outward like a gun. It shoots in a linear fashion, but since it is not confined to a closed surface, the molecules can move randomly.
okay!! aweosme!! what about 4 and 5?? is 4 right?? and idk 5 ;(
Um, #4 is weird, b/c @ STP, there are standard conditions and I think it has to be one mole. Since you have a constant temp, volume, and pressure (the ideal gas law). So that's kind of odd. But, w/o STP, i one could argue 3 moles of He. I say this b/c more moles = more pressure.
And "A" is correct. for #5.
okay so is #4 D then?? thats the closest answer? and yay fot #5!
thanks for ur help :)