Test Index

NCERT Class XI Chemistry States of Matter Solutions

© examsnet.com
Question : 7
Total: 23
What will be the pressure exerted by a mixture of 3.2 g of methane and 4.4 g of carbon dioxide contained in a 9 dm3 flask at 27°C?
Solution:  
nCH4 =
3.2
16
 = 0.2 mole ; nCO2 =
4.4
44
 = 0.1 mole
PCH4 =
nCH4
V
RT =
0.2
V
RT ; PCO2 =
0.1
V
RT
Pmixture = PCH4+PCO2 = 0.2 ×
RT
V
 + 0.1 ×
RT
V
 =
0.3×0.0821×300
9
 = 0.821 atm
= 0.821 × 101325 = 8.318 × 104 Pa [Since 1 atm = 101325 Pa]
© examsnet.com
Go to Question:
Prev Question
Next Question