Temperature measures how hot or cold something is. It is a physical quantity that expresses the degree of hotness or coldness of a substance. It is typically measured using a thermometer in units such as degrees Celsius or Fahrenheit.
Sodium is a metal that reacts quickly with cold water only when it is finely powdered. When the surface area of the sodium is increased by grinding it into a fine powder, it can react with the water at a faster rate due to the increased contact between the metal and the water molecules.
Warm water will generally boil faster than cold water because warm water is already starting with a higher temperature, so it requires less energy to reach the boiling point.
Potassium Manganate (VII) also called potassium permanganate, dissolves very quickly in hot water and much slower in cold water.
A pipe carrying hot water will generally corrode more quickly than one carrying cold water. The higher temperature of the hot water can accelerate the corrosion process by making the metal more reactive and causing it to deteriorate faster over time.
When a thermometer enters cold water, the temperature reading on the thermometer will decrease as the thermometer adjusts to the temperature of the water. The liquid inside the thermometer will contract and move down the scale, indicating the lower temperature of the cold water.
Use a thermometer. =====================
It could be that the 'thermometer' and I presume you mean Thermostat is in backwards
Once the water temperature reach -4°,it does not freeze anymore,
You can measure the temperature of water using a thermometer. Insert the thermometer into the water and wait a few seconds for the reading to stabilize. The temperature displayed on the thermometer is the temperature of the water.
the termometre gets warmer
To measure the temperature of cold water, a digital thermometer or a glass mercury thermometer can be used. Digital thermometers provide quick and accurate readings, while glass thermometers are traditional and can be very precise, though they may take longer to stabilize. For best results, ensure the thermometer is fully submerged in the water without touching the sides of the container.
When you dipped your finger into the cold water, heat transferred from your warmer finger to the cooler water. This process is known as conduction, where thermal energy moves from a hotter object to a cooler one until thermal equilibrium is reached. As a result, your finger feels cold due to the loss of heat, while the water slightly warms up from the energy it absorbs.
To quickly get hot water from the cold tap, you can turn on the hot water faucet and let it run until the hot water reaches the tap. This process helps to flush out the cold water in the pipes and allows the hot water to flow faster.
An instrument that measures heat and cold is called a thermometer.
A thermometer is used to measure the temperature of air, indicating whether it is hot or cold. Temperature readings are typically displayed in degrees Celsius or Fahrenheit.
he fed him soup, then dipped his head in hot and cold water one then the other