The motion of the water molecules increase as heat is added.
Explanation:
Hello!
In this case, in general terms, one can know that molecules and heat have a relationship by which one affects the other, more specifically, the heat affects how the molecules behave. In such a way, as the heat added to a system increases its internal energy, one can notice that energy speeds up the molecules because they acquire such energy and the motion starts being increased, it means, the molecules start moving or vibrating faster than before of that heat addition. This is due to the increase of the internal energy, which based on the first law of thermodynamics is related with the velocity of the molecules.
The equation that correctly represent the reaction for formation of ammonia is
N2+ 3H2 → 2NH3 (answer D)
1 mole of nitrogen gas (N2) react with 3 moles of hydrogen gas (H2) to form 2 moles of ammonia ( NH3). This is in a process known as haber process were iron is used as a catalyst and reaction take place that a higher temperature and pressure. The process is exothermic hence energy is released.
