when temperature increases, pressure will increase as well. they cancel out. so density remains constant.
density is still a function of temperature.
@xexvc0302 it literally said “for a gas AT CONSTANT VOLUME, which of the following is NOT a function of temperature?” Wanna keep arguing? The College Board would laugh in your face if you complained about it.
@Arpeggio206 it’s almost like you’re teaching me new things here… since when does temperature not impact energy??? Maxwell-Boltzmann distributions? Activation energy? And what does the first law of thermodynamics have to do with this? Stop trying to tr011.
Also, deviations from ideal gas behavior are corrected for in van der Waals equation (P + a n^2/V^2)(V - nb) = nRT, thus it can be argued that these deviations are not a function of temperature (the a n^2/V^2 and nb terms do not contain temperature).
@apactstudent Omg stop being so spiteful, smh.
@tooeasy very true
@aplangq Sorry, I don’t take kindly to tr011s.
It’s not badly worded. If you look up what “function of” means in the dictionary, it’ll tell you that it is a relationship where the change of one variable affects the other.
In your defense, density can be calculated from temperature. I think you are thinking of getting an algebraic function, not “a function of” (which means a relationship between).
And density, by it’s own definition, is the “quantity or number per unit”, which in chemistry, it’s mass per volume.
In this question, volume is not changed, mass obviously is not either, therefore, density should be constant no matter how the pressure changes.
Just like if you take a bottle of water to a high mountain, yes it’s pressure changes, but does the density change? Is it going to flow above ice? No, right? Same concept.
Hahaha after taking this test I feel like I’m SO prepared for AP chem next year. :))
C4H6 is an alkyne I believe, which has a triple bond between the middle two carbons, and single bonds everywhere else. I chose the one with 3 Cs
@anandp773 C4H6 can be, among other things, butyne or butadiene
@blandscreenname You had to find q for the water, which was 2100 J, then plug that into the equation for metal. You get 2100 = (50)m(60) --> m=0.7 units
Can someone explain why condensation would not be the answer?
were the 555 and 795 two different questions
@Arpeggio206
Condensation is usually used in distillation of water, if I remember it right. What’s your confusion? Did you think it’s the Iodine one?
@tina23 I thought it was one of them on the first page.
The questions in that set were:
Formation of CO2 from CaCO3 and H2SO4 from acid rain (neutralizing sulfuric acid)
Iodine vapor above Iodine crystal (Iodine is a solid at RT, thus the vapor would have sublimed from the crystal)
Forming CO2 from C (oxidizing C from 0 to +4)
Changing Manganese(V) to Manganese metal (reduction from +5 to 0)
Condensation was the fifth choice, and was unused.
I feel like I skipped 1 question by accident and continued, getting everything wrong because of that
According to Wikipedia, density is a function of temperature.
Hopefully Wikipedia is right.
To be honest, that question was terribly worded. I was on the fence about my answer for several minutes.
Also, does anyone know what the 555 question asked/whether it gave options for both positive and negative values (because if it did, I might have accidentally chosen the wrong one)?
Density is affected by temperature because temperature affects volume right? The question said constant volume and I think the reason it said constant volume was to lead us to the right answer which is density. Was there another answer choice where temperature affects it if volume is not constant but does not if volume is constant?