Question
Wed October 19, 2011 By: Selsha Ks

at 25c and 760mm of hg pressure a gas occupies 600ml volume . what will be its pressure at a height where temperature is 10c and volume of the gas is 640ml?

Expert Reply
Thu October 27, 2011
Here,  P1 =760 mm Hg ; V1 = 600 ml ; T1 = 298 K
And,   V2 = 640 ml ; T2 = 283 K
According to combined gas law equation,    P1V1 / T1 = P2V2 / T2
 
P2 =P1V1T2 / V2T1
 
= (760 x 600 x283) / (640 x 298)
 
=676.6 mm Hg
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