Mole ConceptHard
Question
A mixture is made equal volume of CO and air. A spark passed through so that all the oxygen is converted to carbon dioxide. What will be fractional decrease in the total volume of system assuming pressure and temperature remain constant? Air contains 20% oxygen by volume.
Options
A.0.1
B.0.2
C.0.15
D.0.3
Solution
$CO + \frac{1}{2}O_{2} \rightarrow CO$
0.4V mL 0.2V mL 0.4V mL
Decrease in volume = (0.4V + 0.2V) – 0.4V = 0.2V
∴ Fractional decrease in volume = $\frac{0.2V}{2V} = 0.1$
Create a free account to view solution
View Solution FreeMore Mole Concept Questions
If ‘JAYARAO BANDA’ is written by a graphite pencil, it weighs 3.0 × 10–10 g. How many carbon atoms are present in it? (N...A sample of protein was analysed for metal content and analysis revealed that it contained magnesium and titanium in equ...The percentage by volume of C3H8 in a mixture of C3H8, CH4 and CO is 36.5. The volume of CO2 produced when 100 ml of the...Which of the following statement(s) is/are correct about the Avogadro’s number?...A mixture of 254 g of iodine and 142 g of chlorine is made to react completely to give a mixture of ICl and ICl3. How ma...