Flag Physical Chemistry> pressure...
question mark

3.2 g of oxygen (At. weight = 16) and 0.2 g of hydrogen (At. wt. = 1) are placed in a 1.12 litre flask at 0°C. The total pressure of the gas mixture will be(a) 1 atm(b) 4 atm(c) 3 atm(d) 2 atmchoose and explain

pratiksha agarwal , 11 Years ago
Grade 12
anser 2 Answers
KUMAR PRASSU

Last Activity: 11 Years ago

 

There is a total of 0.2 moles of gas =>n=0.2

volume of container is 1.12L=>V=1.12L

temp. is 273 K=>T=273K

there fore by PV=nRT

pressure=4atm

there fore option 2 is correct

hope u like this 

PLS APPROVESmile

Vikas TU

Last Activity: 11 Years ago

You are dealing with diatomic oxygen ( molar mass 32g/mol ) and diatomic hydrogen ( 2g/mol )
Mol O2 in flask = 3.2/32 = 0.1 mol
Mol H2 in flask = 0.2/2 = 0.1 mol H2
Total moles = 0.2mol

Calculate pressure using gas equation:
PV = nRT
P * 1.12 = 0.2*0.082057*273
P = 4.480/1.12
P = 4.000 atm

Pressure = 4atm - choice b) is correct.

 

Plz Approve!

Provide a better Answer & Earn Cool Goodies

Enter text here...
star
LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

tv

Full Live Access

material

Study Material

removal

Live Doubts Solving

assignment

Daily Class Assignments


Ask a Doubt

Get your questions answered by the expert for free

Enter text here...