InterviewSolution
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InterviewSolution
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Which of the following gas minimum equivalent volume?A. one equivalent of hydrogenB. one equivalent of oxygenC. one equivalent of nitrogenD. all have volumes |
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Answer» Correct Answer - 3 Equivalent volume of any gas is the volume occupied by one equivalent of gas at NTP (or STP). We all know that 1 mole of molecules of any gas occupies 22.4 L at NTP and 1 mole of atoms any diatomic gas `(H_(2), O_(2)` and `N_(2))` occupies 11.2 litres at NTP. Since 1 equivalent of `H_(2) = 1 mol` of `H` atoms or `1//2` mol of `H_(2)` molecules 1 equivalent of `O_(2)=1/2` mol of `O` atoms or `1//4` mol of `O_(2)` molecules 1 equivant of `N_(2)=1/3` mol of `N` atoms or `1//6` mol of `N_(2)` molecules We have `(at NTP)` Volume of 1 equivalent of `H_(2)(g)=11.2L` Volume of 1 equivalent of `O_(2)(g)=5.6 L` Volume of 1 equivalent of `N_(2)(g)=3.73 L` through the knowledge for a gas as follows: No of equivalents of gas `=("Volume of gas at NTP")/("Equivalent volume of gas")` Note that different number of molecules are present in 1 equivalent of each of these gases: i equivalent of `H_(2)=(6.022xx10^(23))/2 H_(2)` molecules 1 equivalent of `O_(2)=(6.022xx10^(23))/4 O_(2)` molecules 1 equivalent of `N_(2)=(6.022xx10^(23))/6 N_(2)` molecules |
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