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This article was co-written by Meredith Juncker, PhD. Meredith Juncker is a PhD student in Biochemistry and Molecular Biology at Louisiana State University’s Center for Health Sciences. Her studies focus on proteins and neurodegenerative diseases.
This article has been viewed 3,176 times.
What do you do when you need to determine the temperature of the water but don’t have a waterproof thermometer available? This article will help you estimate the temperature of water by watching for signs that the water is about to boil or freeze. In addition, you will be taught how to use your hand or elbow to guess the temperature of the water. However, determining the temperature of the water without using a thermometer will not give you the exact temperature.
Steps
Using hands and elbows
- Do not directly put your hands into the water whether in the kitchen or in the wild without placing your hands above the water to feel the temperature.
- Avoid putting your hands in water where the temperature is unknown, as you may get burned.
Determination of cold water
- In a nutshell, water vapor condenses faster when the water is colder than the air temperature.
- If you see steam condensing on the outside of the cup for 2 or 3 minutes, it’s very cold water.
- For example, when you look at the bowl of water in the freezer, you’ll see some formed at the edge of the water close to the side of the bowl.
Guess the heat of water by the size of water bubbles
- The water bubbles that appear at such low temperatures are about the size of a “shrimp’s eye” – the size of a pin.
- You will also see some steam starting to rise from the pot when the water is heated to 79°C.
- The size of the water bubble is now the same as the size of a “crab eye”.
- The first water bubbles to rise to the surface of the water were the size of a “fish eye”.
- Immediately after the “string of pearls” stage, the water will reach 100°C and boil vigorously.
Advice
- If the water contains impurities such as salt, the boiling point will change. The more impurities the water contains, the higher the temperature required to boil the water.
- Altitude also affects the boiling point of water. Although water usually boils at 100°C, at high altitudes it boils at a lower temperature (90°C), due to reduced air pressure. [8] X Research Sources
Warning
- Do not put your fingers or hands in boiling or about to boil water, as you will be severely burned.
This article was co-written by Meredith Juncker, PhD. Meredith Juncker is a PhD student in Biochemistry and Molecular Biology at Louisiana State University’s Center for Health Sciences. Her studies focus on proteins and neurodegenerative diseases.
This article has been viewed 3,176 times.
What do you do when you need to determine the temperature of the water but don’t have a waterproof thermometer available? This article will help you estimate the temperature of water by watching for signs that the water is about to boil or freeze. In addition, you will be taught how to use your hand or elbow to guess the temperature of the water. However, determining the temperature of the water without using a thermometer will not give you the exact temperature.
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