Table 9. Data on Temperature of the Gas Before and After Shaking the Erlenmeyer flask Trial Temperature (C°) Before Shaking After Shaking 1 2 3 Average Q1. What happens to the drops of denatured alcohol after 2 minutes? after another 2 minutes? Q2. Compare the pressure exerted by the denatured alcohol molecules before and after shaking?
Answer (1)
Answer:Q1. What happens to the drops of denatured alcohol after 2 minutes? After another 2 minutes? After 2 minutes, the drops of denatured alcohol will likely start to spread out and mix more with the gas in the flask due to the increased agitation caused by shaking. This spreading leads to a more uniform distribution of the alcohol in the gas phase. After another 2 minutes, the alcohol will continue to evaporate, and the gas may become saturated with alcohol vapor, resulting in a more pronounced change in temperature and pressure inside the flask. Q2. Compare the pressure exerted by the denatured alcohol molecules before and after shaking. Before shaking, the pressure exerted by the denatured alcohol molecules is relatively lower because the alcohol is not fully mixed with the gas and may be in larger droplets. After shaking, the pressure increases due to the higher energy and agitation of the alcohol molecules, leading to more collisions with the walls of the flask. This agitation helps to vaporize the alcohol more effectively, increasing the overall pressure in the flask.In summary:Q1: After 2 minutes, the alcohol spreads; after another 2 minutes, it continues to evaporate, potentially saturating the gas. Q2: Pressure is lower before shaking, higher after due to increased vaporization from the agitation.
