The circulation of blood in human body supplies $O_{2} and releases {CO}_{2} .$ The concentration of $O_{2} and {CO}_{2}$ is variable but on an average, 100 ml blood contains 0.02 g of $O_{2} and 0.08 g of {CO}_{2} .$ The volume of $O_{2} and {CO}_{2}$ at 1 atm at body temperature $37^{0} C,$ assuming 10 L blood in human body, is

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2 L, 4 L

1.5 L, 4.5 L

1.59 L, 4.62 L

3.82 L, 4.62 L

answer is C.

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Detailed Solution

$∴$ 100 ml blood has 0.02 g $O_{2} g and 0.08 g {CO}_{2}$

$∴$ 10,000 ml blood has 2 g $O_{2} g and 8 g {CO}_{2}$

Using PV = nRT

for $O_{2}$ $1 \times V_{O_{2}} = \frac{2}{32} \times 0.0821 \times 310 \Rightarrow V_{O_{2}} = 1.59 Litre for {CO}_{2}, 1 \times V_{{CO}_{2}} = \frac{8}{44} \times 0.0821 \times 310 \Rightarrow V_{{CO}_{2}} = 4.62 Litre$

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