Qualification > Sciences

gas laws..

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nid404:

--- Quote from: slvri on September 30, 2009, 02:39:29 pm ---this is physics right..........u guys are already so far ahead? i dont know how to answer this q cuz i aint studied this.........sory :-[

--- End quote ---

No problem slvri

astarmathsandphysics:
pV= K but d=m/V soV=M/d so p/d=K

nid404:

--- Quote from: astarmathsandphysics on September 30, 2009, 03:16:21 pm ---pV= K but d=m/V soV=M/d so p/d=K

--- End quote ---

In this case the pressure is constant ???

so isn't it

t1d1=t2d2
300KX3=2.4Xt2
t2=375K

I'm confused :-\

astarmathsandphysics:
it says in the question the pressure is constant

nid404:
another question

0.23g of a volatile solute displaced 112ml of air at  NTP. Calculate the vapour density and the molecular weight of the substabce

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