Purpose:
The main purpose behind this experiment is to know the how the strength of the intermolecular forces changes with the molecular size and structures. Based on the examination of the evaporation of different liquids and by determining the vapor pressure of different alcohols at a different temperature.
Producer:
There will be two parts in this experiment to know the strength of the intermolecular forces of different liquids, to conclude the role of the molecular size and structure of the intermolecular forces.
Part A:
In the first part of the experiment, the temperature changes will by measuring by the liquids evaporation, and since it is an endothermic reaction, the temperature will decrease. The temperature probes will be connected, and the computer will prepare to collect the data, as a first step. Two …show more content…
As a first step, four water baths will be prepared based on different temperature ranges, in a 600 ml beaker. After that, the probes will be connected to the channels. A rubber stopper assembly will be inserted into 125 ml Erlenmeyer flask, and the plastic tubing will be attached to the pressure sensor, and it will keep open. While it is open, the value of the atmospheric pressure will be recorded using the computer. Then, the temperature probes and the Erlenmeyer flask will be placed in a room temperature water bath, and the valve will be opened at that time. And after 1 minutes the valve will be closed, and 3 mL of methanol will be drawn up into the syringe. After this step, the methanol will be squirt into the Erlenmeyer flask. The pressure and the temperature data will be collected after that step. When the data is collected, the white valve will be opened to retune the flask to the atmospheric pressure. At that step, the methanol will be evaporated from the Erlenmeyer flask. At the end, the same procedure will be repeated but with ethanol instead of
The main purpose behind this experiment is to know the how the strength of the intermolecular forces changes with the molecular size and structures. Based on the examination of the evaporation of different liquids and by determining the vapor pressure of different alcohols at a different temperature.
Producer:
There will be two parts in this experiment to know the strength of the intermolecular forces of different liquids, to conclude the role of the molecular size and structure of the intermolecular forces.
Part A:
In the first part of the experiment, the temperature changes will by measuring by the liquids evaporation, and since it is an endothermic reaction, the temperature will decrease. The temperature probes will be connected, and the computer will prepare to collect the data, as a first step. Two …show more content…
As a first step, four water baths will be prepared based on different temperature ranges, in a 600 ml beaker. After that, the probes will be connected to the channels. A rubber stopper assembly will be inserted into 125 ml Erlenmeyer flask, and the plastic tubing will be attached to the pressure sensor, and it will keep open. While it is open, the value of the atmospheric pressure will be recorded using the computer. Then, the temperature probes and the Erlenmeyer flask will be placed in a room temperature water bath, and the valve will be opened at that time. And after 1 minutes the valve will be closed, and 3 mL of methanol will be drawn up into the syringe. After this step, the methanol will be squirt into the Erlenmeyer flask. The pressure and the temperature data will be collected after that step. When the data is collected, the white valve will be opened to retune the flask to the atmospheric pressure. At that step, the methanol will be evaporated from the Erlenmeyer flask. At the end, the same procedure will be repeated but with ethanol instead of