20g of hydrogen and 128g of oxygen are contained in a 20L flask at . If a spark ignites the mixture, what will be the final pressure (in atm)?
19.39
17.34
20.23
22.34
We have:
Now, the stoichiometric equation is given as follows:
Thus, according to the given equation, 4 moles of oxygen will react with 8 moles of hydrogen and thus 2 moles of hydrogen will remain unreacted and 8 moles of gaseous water molecules will be formed.
Thus, final pressure if given as :