Question

Which of the following factors are responsible for the change in state of solid carbon dioxide when kept exposed into air

a) decrease in pressure
b) decrease in temp.
c) increase in pressure
d) increase in volume

Answer 1

@Diyadiya

Answer 2

@apoorvk

Answer 3

@ash2326 @experimentX @ParthKohli

Answer 4

@chmvijay

Answer 5

I am a Chemistry n00b, but I think that it is just like water. Water changes into ice when there is a decrease in....

Answer 6

wooh gr8 to know :D..

water changes into ice when there is decrease in temp. and increase in pressure

Answer 7

Hmm. I emphasize the first more. The first is preliminary.

Answer 8

Please, guys, correct me if I am wrong.

Answer 9

hmn i agree .. the correct answer is that u mentioned ..

But i am searching for A Perfect answer ..

Answer 10

Oops. I got this trick question.

Answer 11

Ice changes into water when there is....?

Answer 12

This time, I focus on the latter, i.e pressure.

Answer 13

:D congo..but the main thing is : do solic co2 exists and if it then how ?

Answer 14

How about Carbon?

Answer 15

carbon exists as solid but co2 ? carbon di oxide.. ?

Answer 16

i will be back soon ..within 5 minutes..

Answer 17

I am starting to recall an episode of FAQ(Pogo) where he mentions Dry Ice. That is solid \(CO_2\)

Answer 18

http://en.wikipedia.org/wiki/Carbon_dioxide
the critical point is 31.1 C .... so decrease in pressure may be the cause.
PV = nRT <--- keep temp constant, when it vapourizes, volume is increased so preasure must have decreased.
note that i haven't studied chemistry for so many years.

Answer 19

thanks a lot @experimentX
lolz ..@ParthKohli well i am impressed that u r using POGO in a right way

Answer 20

lol ... what's POGO?

Answer 21

yay! Nice to hear that I was right.
Pogo = A kids channel in India

Answer 22

Oh ... well :)

Answer 23

:) ...\[\Huge{\mathbb{T}\textbf{H}\mathbb{A}\textbf{N}\mathbb{K}\textbf{S}}\]

Answer 24

every one

Answer 25

yw
if possible don't bring me on Chemistry section

Answer 26

oh k sorry for that :)
i thought u r expert in chem.. lolz

Answer 27

no ... i majored on physics.

Answer 28

ohk . Physics lover :)

Answer 29

i guess so ..

Answer 30

@ParthKohli thanks for mentioning ..but This is also an obessed reply ..

Answer 31

either delete that comment or dont reply ..

thanks !

and if you were annoyed why didn't u tell me .. I would have not tagged you ..

Answer 32

hope you understand dude ...

Answer 33

I can also say the same for you very easily : " parth is obessed by going off topic .. and dont have values what a good friend is " ...
so on ..