The circulation of blood in human body supplies and releases . It results the variation in concentration of and in the body. But on an average, blood contains 0.32 g of and 0.88 g of per litre. What s

Question

The circulation of blood in human body supplies $O_2$ and releases $CO_2$. It results the variation in concentration of $O_2$ and $CO_2$ in the body. But on an average, blood contains 0.32 g of $O_2$ and 0.88 g of $CO_2$ per litre. What should be the volume occupied by $O_2$ and $CO_2$, as gas, at 1 atm and at body temperature 37°C, assuming 10 litre blood in human body?

Prashant Kotian · Accepted Answer

Correct answer: C. mass of o2 in 10 l blood = 0.32 × 10 = 3.2 g. moles of o2 = 3.2 / 32 = 0.1 mol. mass of co2 in 10 l blood = 0.88 × 10 = 8.8 g. moles of co2 = 8.8 / 44 = 0.2 mol. v_o2 = nrt/p = 0.1 × 0.0821 × 310 / 1 = 2.545 l. v_co2 = 0.2 × 0.0821 × 310 / 1 = 5.09 l.

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