Unit 2: Assignment 2 - Cooling Curves
ABSTRACT
In this assignment I used the cooling curve to determine the rate of cooling of substances, obtained data using the equipment provided in order to construct cooling curv
...
Unit 2: Assignment 2 - Cooling Curves
ABSTRACT
In this assignment I used the cooling curve to determine the rate of cooling of substances, obtained data using the equipment provided in order to construct cooling curves, analysed the rate of cooling of substances from the recorded data using the cooling curves to draw conclusions and I also evaluated the accuracy of my practical work in relation to the analysis of the cooling curves. Moreover, I also calibrated the thermometers that were provided to me, the alcohol, mercury and digital thermometers. Calibrating thermometers updates the indications and thus allowed me to maintain accurate, reliable and consistent results when taking the temperature measurements.
PART- I
CALIBRATION OF THERMOMETERS INTRODUCTION
Calibration is the process of ensuring that an instrument that might be used in an experiment will produce precise readings. Calibration is vitally important when taking measurements as it enables the users to have confidence in the results that they monitor, record and subsequently control.
Over time there is a tendency that an equipment’s accuracy might drift while measuring parameters such as temperatures. To be sure that the results being measured are accurate, there is an ongoing need to maintain the calibration of equipment throughout its lifetime to produce reliable, accurate and repeatable measurements.
The objective of calibration is to minimise any errors in measurements by confirming the accuracy of the equipment.
APPARATUS
1. Thermometers (alcohol, mercury and digital)
2. Crushed ice
3. Water
4. 500 ml Glass beaker
5. S
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