Assume all of the following problems are at standard conditions. 1. What volume will 0.750 moles of nitrogen gas occupy? *

16.8 L

Explanation:

Given data:

Temperature and pressure = standard

Number of moles of gas = 0.750 mol

Volume occupy by gas = ?

Solution:

we know that at standard temperature and pressure one mole of gases occupy 22.4 L volume.

Thus,

0.750 moles of nitrogen gas occupy the volume,

0.750 mol × 22.4 L/1 mol

16.8 L

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.