The reaction that occurs in a breath analyser a device used

Question

The reaction that occurs in a breath analyser, a device used to determine the alcohol level in a person's blood stream is

2{K_2}C{r_2}{O_7} + 8{H_2}S{O_4} + 3{C_2}{H_6}O \to 2C{r_2}{(S{O_4})_3} + 3{C_2}{H_4}{O_2} + 2{K_2}S{O_4} + 11{H_2}O

If the rate of appearance of Cr₂(SO₄)₃ is 2.67 mol min^{$-$ 1} at a particular time, the rate of disappearance of C₂H₆O at the same time is _____________ mol min^{$-$ 1}. (Nearest integer)

DivineJEE · Accepted Answer

( fracRate of disappearance of C_2H_6O3 ) = ( fracRate of appearance of Cr_2(SO_4)_32 ) => Rate of C_2H_6O = (3 / 2) x 2.67 mol/min => Rate of disappearance of C_2H_6O = 4.005 mol/min

Explanation

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