Step-by-step explanation:
The reaction you are describing is the reaction between ammonia gas (NH3) and hydrochloric acid gas (HCl). When these two gases come into contact, they diffuse and react to form a white solid deposit of ammonium chloride (NH4Cl).
If the experiment was performed at high temperature, you would expect it to take a shorter time for the white deposit to form. This is because at higher temperatures, the gases will have more kinetic energy and move faster, increasing the rate of collision between the gases and therefore the rate of the reaction. As a result, the white deposit will form more quickly at high temperatures than it would at lower temperatures.
It's also important to note that the rate of reaction also depends on the concentration of the reactants. So if the concentration of the reactants is increased, the reaction rate will increase and the white deposit will form faster.
In summary, the reaction between ammonia gas and hydrochloric acid gas forms a white solid deposit of ammonium chloride. The rate of reaction is affected by temperature and concentration of reactants, at higher temperatures and higher concentration, the white deposit will form faster.