Certain amount oxygen gas was passed are heated carbon- 2Cs-O2g - 2Cg ratio of rate of effusion of CO to O2 after 80- of O2 gas which was added converted COg-

On a certain assembly line, the rejection rate for Monday's production was $4 %$ , for Tuesday it was $8 %$ and for the two days combined $7 %$ . What was the ratio of Tuesday's production to Monday's production?

Q. 12 gms of gas occupies a volume of

4 \times 10^{- 3} m^{3}

at a temperature of

7^{\circ} C

. After the gas is heated at constant pressure its density becomes

6 \times 10^{- 4} g m / c c

. The temperature to which the gas was heated is:

Question 18
Which of the following is not true?
(A) $(7 + 8) + 9 = 7 + (8 + 9)$
(B) $(7 \times 8) \times 9 = 7 \times (8 \times 9)$
(C) $7 + 8 \times 9 = (7 + 8) \times (7 + 9)$
(D) $7 \times (8 + 9) = (7 \times 8) + (7 \times 9)$

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Certain amount oxygen gas was passed are heated carbon, 2C(s)+O2(g)→2C(g) ratio of rate of effusion of CO to O2 after 80% of O2 gas which was added converted CO(g).

The correct option is A √87Rateofeffusion∝1√MolecularWeight∴rCOrO2=1√MCO⋅√MO2=√3228=√87

Certain amount oxygen gas was passed are heated carbon, $2 C (s) + O_{2} (g) \to 2 C (g)$ ratio of rate of effusion of $C O$ to $O_{2}$ after $80 %$ of $O_{2}$ gas which was added converted $C O (g)$ .

The correct option is A $\sqrt{\frac{8}{7}}$
$R a t e o f e f f u s i o n \propto \frac{1}{\sqrt{M o l e c u l a r W e i g h t}}$
$∴ \frac{r_{C O}}{r_{O_{2}}} = \frac{1}{\sqrt{M_{C O}}} \cdot \sqrt{M_{O_{2}}} = \sqrt{\frac{32}{28}} = \sqrt{\frac{8}{7}}$