TITLE
The calibration of thermometers and cooling curve of stearic acid
INTRODUCTION
Calorimetry is a scientific method of measuring changes in state, transition, and chemical
processes in temperature and increasing energy transmitted using a calorimeter.
Calorimetry is a scientific method of measuring heat using a calorimeter. In terms of heat
energy, changes in state, process, and chemical reactions transferred.
Stearic acid is a chemical that has been used for a long time for a variety of purposes,
including beauty and hygiene goods like soap and shampoo.
In this experiment, I had to use a cooling curve to calculate the rate at which materials cool.
I collected data with the resources offered to create cooling curves, studied the decrease in
temperature of substances based on the data, and wrote a report. The practical's accuracy
was assessed. In addition, I calibrated the thermometers, ethanol, mercury, and digitized
thermometers are all examples of thermometers. Calibrating thermometers update the
readings, allowing me to stay on top of things. When taking temperatures, you want
accurate, dependable, and consistent data.
AIM
● Gather data using various equipment to generate cooling curves.
● To evaluate the cooling rate of various substances, use cooling curves.
Hypothesis
When monitoring the temperature of stearic acid, I anticipate that the temperature will
gradually decline and finally reach room temperature. This is all dependent on a relative
error, as the window may be opened, allowing the wind to act as a catalyst, allowing the
water to cool down faster.
Risk Assessment
Broken glassware safety assessment: Glass is a medium hazard
Typical risk-reduction strategies include: Protect your eyes and hands by wearing the correct
goggles and gloves. Glassware should be kept in the centre of the desk or table. If a glass
, shard has penetrated the skin, take immediate action. To remove the glass, use tweezers
that have been cleaned with rubbing alcohol. Hot water is a low-risk situation
Hot water: Hot water is a low hazard
Typical risk-reduction strategies include: Put on your safety goggles and gloves. Stir the
ingredients to ensure that the heat is distributed evenly. If hot water comes into touch with
your skin, wash it immediately. To avoid burns, use cold water.
Stearic acid safety assessment: The acid is an irritant
Typical measures to reduce risk: Ensure the room is well ventilated. You also
need to place the acid in the middle of the table to decrease the chance of
spillages. Wear eye protection (safety goggles) Emergency action: if the acid comes in
contact with the skin remove the contaminated clothing and then wash the skin with water.
Calibration of thermometers:
Temperature, not heat, is measured by thermometers. Heat is a type of energy that is
measured in joules, whereas temperature is measured in degrees Celsius (°C).
The following is an equation that relates energy, temperature, and heat:
Q=mcΔT
Equipment:
● Thermometers
● Cubed ice
● Water
● Glass beaker
● Stopwatch
● Bunsen burner
● Tripod and gauze
● Glass rod
● Heat resistant mat
The calibration of thermometers and cooling curve of stearic acid
INTRODUCTION
Calorimetry is a scientific method of measuring changes in state, transition, and chemical
processes in temperature and increasing energy transmitted using a calorimeter.
Calorimetry is a scientific method of measuring heat using a calorimeter. In terms of heat
energy, changes in state, process, and chemical reactions transferred.
Stearic acid is a chemical that has been used for a long time for a variety of purposes,
including beauty and hygiene goods like soap and shampoo.
In this experiment, I had to use a cooling curve to calculate the rate at which materials cool.
I collected data with the resources offered to create cooling curves, studied the decrease in
temperature of substances based on the data, and wrote a report. The practical's accuracy
was assessed. In addition, I calibrated the thermometers, ethanol, mercury, and digitized
thermometers are all examples of thermometers. Calibrating thermometers update the
readings, allowing me to stay on top of things. When taking temperatures, you want
accurate, dependable, and consistent data.
AIM
● Gather data using various equipment to generate cooling curves.
● To evaluate the cooling rate of various substances, use cooling curves.
Hypothesis
When monitoring the temperature of stearic acid, I anticipate that the temperature will
gradually decline and finally reach room temperature. This is all dependent on a relative
error, as the window may be opened, allowing the wind to act as a catalyst, allowing the
water to cool down faster.
Risk Assessment
Broken glassware safety assessment: Glass is a medium hazard
Typical risk-reduction strategies include: Protect your eyes and hands by wearing the correct
goggles and gloves. Glassware should be kept in the centre of the desk or table. If a glass
, shard has penetrated the skin, take immediate action. To remove the glass, use tweezers
that have been cleaned with rubbing alcohol. Hot water is a low-risk situation
Hot water: Hot water is a low hazard
Typical risk-reduction strategies include: Put on your safety goggles and gloves. Stir the
ingredients to ensure that the heat is distributed evenly. If hot water comes into touch with
your skin, wash it immediately. To avoid burns, use cold water.
Stearic acid safety assessment: The acid is an irritant
Typical measures to reduce risk: Ensure the room is well ventilated. You also
need to place the acid in the middle of the table to decrease the chance of
spillages. Wear eye protection (safety goggles) Emergency action: if the acid comes in
contact with the skin remove the contaminated clothing and then wash the skin with water.
Calibration of thermometers:
Temperature, not heat, is measured by thermometers. Heat is a type of energy that is
measured in joules, whereas temperature is measured in degrees Celsius (°C).
The following is an equation that relates energy, temperature, and heat:
Q=mcΔT
Equipment:
● Thermometers
● Cubed ice
● Water
● Glass beaker
● Stopwatch
● Bunsen burner
● Tripod and gauze
● Glass rod
● Heat resistant mat
