What is the thermometer?
A thermometer is a device used to gauge an object or substance's temperature. Temperature can be
measured using a scale on thermometers. A scale is a tool for measuring that consists of several
marks and numbers. As the temperature rises, the liquid in the thermometer rises. The molecules
move apart due to the increase in kinetic energy. As the temperature drops, the liquid in the
thermometer decreases. The molecules are pushed together by the drop in kinetic energy.
Principal of thermometer?
On heating, both solids and liquids expand. The mercury in thermometers expands as the
temperature rises, moving upward to show the temperature.
When determining how hot or cold an object is, a thermometer is employed as a measurement tool.
It comprises of a glass tube with mercury liquid inside of it. The mercury begins to expand when the
thermometer bulb is dipped in the specified solution or object. The temperature is used to measure
this mercury expansion. The temperature of the specified object or solution can be calculated based
on the reading. As a result, the degree of hotness or coolness of the specified solution or item
determines how a thermometer functions.
Type of thermometer?
Infrared thermometers, strip-type thermometers, ear (tympanic) thermometers, and more. mercury
temperature gauges.
Why Calibrating the thermometer?
As opposed to a glass thermometer, which requires time to adjust and settle on a reading, digital
thermometers can deliver immediate, highly sensitive temperature readings. Since they are not
constrained by the thermodynamic characteristics of a liquid, they also allow for the measurement
of greater temperature ranges.
These devices, like most test instruments, are subject to long-term manufacturer specification drift.
The quality and health and safety standards in the healthcare, power generation, pharmaceutical,
and other process industries are significantly at risk from inaccurate readings. To ensure that
technicians and other professionals monitoring the process have confidence in these measurements,
thermometer calibration is crucial.
, Name of assessor: Colin Purkey
Date: 15-11-2022
Activity: stearic acid and paraffin wax cooling curves are measured when calibrating a
thermometer.
Hazard:
1 boiling tube, thermometer, and beakers (broke glassware)
2 a tripod and stand
3 Bunsen burner (partly closed and fully open)
4-gauze (hot) (hot)
5. A beaker of warm water
6 Acid stearic
acid paraffin
Risk:
get harmed (breakable equipment
get harmed
Burning garments or/and skin
sliced and burned skin
two- and three-degree burn
harmful if consumed
breathing difficulties and potential irritability if breathed in restricted spaces.
Those risk at:
Student and teacher
Control measurement/safety:
Use all breakable equipment with extreme caution.
When doing experiments, use caution and avoid obstacles like bags that can be left outside the
lab on the side of the tables.
keep the flame golden (since it is visible). is heated even when not being used to heat anything.
Use with extreme care and specialised gloves.
To remove the beaker, put on thermal protection gloves.
Do not ingest, and after using it, wash your hands.
employ a face mask that covers your mouth and nose to avoid inhaling, and
Always put on a lab coat, gloves, and safety glasses when working in a lab.
Emergency action:
find first aid supplies
obtain a first aid kit
Pour some ice water on the region for at least 15 minutes. get medical help, and in the event of a
fire, dial the emergency number (999)
if you have a skin cut, look for a first aid kit, and if you have a skin burn, apply chilly water to the
area.
Equipment:
, Beaker, 250 ml
thermometer (-100 to 1100) (-100 to 1100)
ice
kettle
Water
Method1:
A glass was filled with ice cubes and finished with chilly water.
After stirring the water, it was let to stand for three minutes.
Once more stirred, the thermometer was placed inside the glass while making sure not to touch the
sides.
The difference was noted and appropriately offset so that the temperature should have read 320F
(00C).
Method2:
The distilled water was boiled in a pot.
The thermometer was inserted and checked to make sure it did not touch the sides or bottom of the
pot when the water came to a rolling boil. The temperature should have read 2120F (1000C), and
any difference was noted and offset appropriately.
Result:
Temperature reading Thermometer reading Corrected temperature
0°C to 32°CF ICE 3°C -3°C
100° to 2121°F Boiling water 100°C 0°C
Evalution:
We placed the thermometer before it could accurately gauge a temperature later to determine how
accurate it was. The experiment method will suffer from inaccurate measurements. An experiment's
efficiency will be hampered by an uncalibrated thermometer's inaccurate readings.
In this experiment, we used an alcohol thermometer, but we could also use a mercury thermometer,
which provides results more rapidly, is more durable because it does not evaporate as easily, does
not wet the thermometer's walls, and ensures that the results obtained are quite exact. It does
evaporate more quickly than an alcohol thermometer, which wets the thermometer's walls and may
affect the accuracy of the readings.
The mercury thermometer is highly poisonous if it breaks, so alcohol thermometers are safer in
terms of safety than mercury thermometers.
It could have an impact on the calibration by reading lower temperatures if the ice were partially
melted or the water did not reach boiling point.
A thermometer is a device used to gauge an object or substance's temperature. Temperature can be
measured using a scale on thermometers. A scale is a tool for measuring that consists of several
marks and numbers. As the temperature rises, the liquid in the thermometer rises. The molecules
move apart due to the increase in kinetic energy. As the temperature drops, the liquid in the
thermometer decreases. The molecules are pushed together by the drop in kinetic energy.
Principal of thermometer?
On heating, both solids and liquids expand. The mercury in thermometers expands as the
temperature rises, moving upward to show the temperature.
When determining how hot or cold an object is, a thermometer is employed as a measurement tool.
It comprises of a glass tube with mercury liquid inside of it. The mercury begins to expand when the
thermometer bulb is dipped in the specified solution or object. The temperature is used to measure
this mercury expansion. The temperature of the specified object or solution can be calculated based
on the reading. As a result, the degree of hotness or coolness of the specified solution or item
determines how a thermometer functions.
Type of thermometer?
Infrared thermometers, strip-type thermometers, ear (tympanic) thermometers, and more. mercury
temperature gauges.
Why Calibrating the thermometer?
As opposed to a glass thermometer, which requires time to adjust and settle on a reading, digital
thermometers can deliver immediate, highly sensitive temperature readings. Since they are not
constrained by the thermodynamic characteristics of a liquid, they also allow for the measurement
of greater temperature ranges.
These devices, like most test instruments, are subject to long-term manufacturer specification drift.
The quality and health and safety standards in the healthcare, power generation, pharmaceutical,
and other process industries are significantly at risk from inaccurate readings. To ensure that
technicians and other professionals monitoring the process have confidence in these measurements,
thermometer calibration is crucial.
, Name of assessor: Colin Purkey
Date: 15-11-2022
Activity: stearic acid and paraffin wax cooling curves are measured when calibrating a
thermometer.
Hazard:
1 boiling tube, thermometer, and beakers (broke glassware)
2 a tripod and stand
3 Bunsen burner (partly closed and fully open)
4-gauze (hot) (hot)
5. A beaker of warm water
6 Acid stearic
acid paraffin
Risk:
get harmed (breakable equipment
get harmed
Burning garments or/and skin
sliced and burned skin
two- and three-degree burn
harmful if consumed
breathing difficulties and potential irritability if breathed in restricted spaces.
Those risk at:
Student and teacher
Control measurement/safety:
Use all breakable equipment with extreme caution.
When doing experiments, use caution and avoid obstacles like bags that can be left outside the
lab on the side of the tables.
keep the flame golden (since it is visible). is heated even when not being used to heat anything.
Use with extreme care and specialised gloves.
To remove the beaker, put on thermal protection gloves.
Do not ingest, and after using it, wash your hands.
employ a face mask that covers your mouth and nose to avoid inhaling, and
Always put on a lab coat, gloves, and safety glasses when working in a lab.
Emergency action:
find first aid supplies
obtain a first aid kit
Pour some ice water on the region for at least 15 minutes. get medical help, and in the event of a
fire, dial the emergency number (999)
if you have a skin cut, look for a first aid kit, and if you have a skin burn, apply chilly water to the
area.
Equipment:
, Beaker, 250 ml
thermometer (-100 to 1100) (-100 to 1100)
ice
kettle
Water
Method1:
A glass was filled with ice cubes and finished with chilly water.
After stirring the water, it was let to stand for three minutes.
Once more stirred, the thermometer was placed inside the glass while making sure not to touch the
sides.
The difference was noted and appropriately offset so that the temperature should have read 320F
(00C).
Method2:
The distilled water was boiled in a pot.
The thermometer was inserted and checked to make sure it did not touch the sides or bottom of the
pot when the water came to a rolling boil. The temperature should have read 2120F (1000C), and
any difference was noted and offset appropriately.
Result:
Temperature reading Thermometer reading Corrected temperature
0°C to 32°CF ICE 3°C -3°C
100° to 2121°F Boiling water 100°C 0°C
Evalution:
We placed the thermometer before it could accurately gauge a temperature later to determine how
accurate it was. The experiment method will suffer from inaccurate measurements. An experiment's
efficiency will be hampered by an uncalibrated thermometer's inaccurate readings.
In this experiment, we used an alcohol thermometer, but we could also use a mercury thermometer,
which provides results more rapidly, is more durable because it does not evaporate as easily, does
not wet the thermometer's walls, and ensures that the results obtained are quite exact. It does
evaporate more quickly than an alcohol thermometer, which wets the thermometer's walls and may
affect the accuracy of the readings.
The mercury thermometer is highly poisonous if it breaks, so alcohol thermometers are safer in
terms of safety than mercury thermometers.
It could have an impact on the calibration by reading lower temperatures if the ice were partially
melted or the water did not reach boiling point.
