3.1 Experimental sites
The experiment was set up in the School of Science and Technology, Singapore's Research laboratory and the experiments were conducted there too.
3.2 Results obtained from datalogger
Measuring the salinity of the saltwater
Measuring the salinity of the water that was collected
Salinity of tap water
Flow Rate 1 Experiment Graph
Graph 1) Based on the graph above, we can conclude that the prime variables for Flow Rate 1 is 50º and 450º
Graph 2) Based on the graph above, we can conclude that the prime variables for Flow Rate 2 is 50º and 450º
Graph 3) Based on the graph above, we can conclude that the prime variables for Flow Rate 3 is 50º and 450º
In conclusion, the best variables in order to collect the most amount of water is Flow Rate 3, 50º and 450º
Efficiency rate- Energy/ml
Based on the data we collected
For the graph above, the Heat and Angle variables are 450ºC and 50º respectively.
Calculating the amount of energy used per ml, we can conclude that experiments using Flow rate #3 will be the most efficient as the amount of energy used is lower as compared to the other experiments we carried out with Flow Rate #1 and #2. This is similar to extremely basic desalination systems that consist of nothing but, an evaporation chamber and a condensation plate.
Law of Gravity
The force that caused the apple's acceleration (gravity) is dependent on the mass of the apple.(Physics, -) And since the force acting to cause the apple's downward acceleration also causes the earth's upward acceleration (Newton's third law), that force must also depend upon the mass of the earth. So for Newton, the force of gravity acting between the earth and any other object is directly proportional to the mass of the earth, directly proportional to the mass of the object, and inversely proportional to the square of the distance that separates the centers of the earth and the object.
Due to Gravity, the water droplet falls onto the Metal Strip.
(Henderson, T. 2014)
Kinetic Particle Theory
The kinetic particle theory states that
1)All matter is made up of small particles that cannot be seen directly with the naked eye
2)There are spaces between particles in all matter but the amount of space in each state of matter is different
3)Particles are in constant random motion, but the speed of movement differs in each state
4)Particles possess kinetic energy that varies with temperature
5)The average kinetic energy of all particles is directly proportional to the absolute temperature.
Due to Kinetic Particle Theory, the water in the round-bottom flask is heated. The heat energy is converted to kinetic energy, which causes the particles in the water to vibrate faster, and as the vibrations get stronger, they soon are able to overcome the forces of attraction that causes the particles to stick together. The mass vibration then causes the particles to loosen and the water evaporates into water vapour.
The table above shows the results we obtained when we measured the flow rate of water.
3.3 Special observations
For every experiment, there was a lot of steam that was escaping and we were not able to prevent the steam from escaping. We also noticed that alot of water was condensing at the side of the round bottom flask. Tiny water droplets could be clearly seen. There was also water condensing on the part of the pipes that were not covered with aluminium strip. The heating mantle is able to sense when the temperature of the water is 100 ºC and will immediately switch itself off.