question_answer

One mole of \[{{N}_{2}}{{O}_{4}}(g)\] at \[100\text{ }K\]is kept in a closed container at \[1.0\text{ }atm\]pressure. It is heated to \[300\text{ }K,\] where 30% by mass of \[{{N}_{2}}{{O}_{4}}(g)\] decomposes to \[N{{O}_{2}}(g)\]. The resultant pressure is    .___.

Answer:

3.9