Explain if true or false. We can always use 22.4 as a proportionality between moles of...

Explain if true or false. We can always use 22.4 as a proportionality between moles of gases within reactions, regardless of the conditions of the surroundings.

Expert Solution

The answer is false. At standard temperature and pressure values, the volume of one mole of gas is described to be 22.4L for an ideal gas. The ratio between the moles of gases in a reaction can be given by Avogadros law and Gay Lussacs law.

Avogadro's law states that equal volmes of gases at standard temperature and pressure contain same moles of gas. This means that the relative moles of the reactants and products gives us the gas volumes of those reactants and products provided they are measured at the same Temperature (T) and Pressure (P). for eg.

3H2+ N2 ----> 2NH3

This balanced equation means that 3 moles of H2 react with one mole of nitrogen to give 2 moles of ammonia. i.e 3 volumes of H2 reacts with one volume of N2 to give 2 volumes of NH3 as given by Gay Lussacs law of combining gases. Therefore one can directly state that 3 volume of H2 will directly react with one volume of N2. This is true only when standard temperature and pressure conditions are maintained.

queen_honey_blossom answered 1 hour ago

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