(Solved): 1. In an experiment, a closed container holds a 10.0g sample of an alcohol. The container is coo ...

1. In an experiment, a closed container holds a $$10.0\mathrm{g}$$ sample of an alcohol. The container is cooled at a constant rate. The sample's temperature is recorded each minute. A graph of the data is below. A phase diagram for the alcohol is also shown. COOLING CURVE FOR AN PHASE DIAGRAM OF AN ALCOHOL (e) During the phase change process, was energy absorbed or released by the alcohol? Explain. (f) What can you conclude about the strength of the interactions between water particles compared to the strength of the interactions between particles of the alcohol? Use information from the table of values in part (d) above to justify your answer. Cooling an Alcohol (a) At about what temperature does the sample change phase? 1. In an experiment, a closed container holds a $$10.0\mathrm{g}$$ sample of an Justify your answer based on the cooling curve shown on the left. alcohol. The container is cooled at a constant rate. The sample's temperature is recorded each minute. A graph of the data is below. A phase diagram for the alcohol is also shown. (b) A student states, When the alcohol sample was at a temperature of $$500\mathrm{K}$$, all the particles were moving faster than any of the particles were moving at $$400\mathrm{K}$$." Do you agree or disagree with this student's statement? Justify your answer. (c) Using boxes like the ones below, draw three particle diagrams representing the sample of alcohol cooling in this experiment. The diagrams should represent the sample at 3 minutes, 12 minutes, and 17 minutes. (e) During the phase change process, was energy absorbed or released by the alcohol? Explain. (f) What can you conclude about the strength of the interactions between water particles compared to the strength of the interactions between particles of the alcohol? Use information from the table of values in part (d) above to justify your answer. (d) How much energy was transferred during the phase change shown on the cooling curve? Use the phase diagram and table of values below to help you answer the question.