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The temperature of a body is a measurement of how hot or cold it is. A heated oven, for example, has a high temperature, whereas ice has a low temperature. The average kinetic energy of the particles, atoms, or molecules that make up a substance is measured by temperature. A thermometer can be used to determine the temperature. On the Fahrenheit, Celsius, and Kelvin scales, it is measured in degrees.
Temperature
- Temperature is a physical number that describes how hot or cold something is. When a body comes into contact with something else that is colder or hotter, it is the expression of thermal energy, which is present in all matter and is the source of the appearance of heat, a flow of energy. Heat should not be confused with temperature.
- Absolute zero is the minimum theoretical temperature at which no additional thermal energy can be collected from a body. The third law of thermodynamics recognises that it can only be approached extremely precisely (100 PK) but not reached experimentally.
- Temperature is significant in physics, chemistry, Earth science, astronomy, medicine, biology, ecology, material science, metallurgy, mechanical engineering, and geography, as well as most elements of everyday life.
Temperature Property
A thermometer can be made out of any physical attribute that is affected by temperature and has a repeatable response to temperature. Because temperature affects so many physical attributes, thermometers come in a wide range of shapes and sizes. For most substances, for example, volume increases as temperature rises. The common alcohol thermometer, the old mercury thermometer, and the bimetallic strip are all based on this feature.
Electrical resistance, colour, and the emission of infrared light are some of the other qualities used to measure temperature.
A plastic thermometer is an example of electrical resistance and colour. On the plastic (liquid crystal) thermometer in , each of the six squares includes a coating of a distinct heat-sensitive liquid crystal material. All six squares are dark below 95 degrees Fahrenheit. When the temperature of the plastic thermometer rises to 95degrees Fahrenheit, the first liquid crystal square changes colour. When the temperature rises above 96.8 degree F the colour of the second liquid crystal square changes, and so on.
Temperature Scales
Thermometers are being used to measure temperature using pre-defined measuring scales with pre-defined reference points to aid in comparison. Fahrenheit, Celsius, and Kelvin are the three most prevalent temperature scales. Identifying two easily reproducible temperatures can be used to establish a temperature scale. Water temperatures of freezing and boiling at ordinary atmospheric pressure are routinely employed.
Physical Properties Temperature Examples
Because temperature affects so many physical attributes, thermometers come in a wide range of shapes and sizes. (a) The alcohol, which contains a red dye, expands faster than the glass encasing it in this typical type of thermometer. The liquid from the bulb is driven into the narrow tube as the temperature of the thermometer rises, resulting in a huge change in the length of the column for a minor change in temperature. (b) This plastic (liquid crystal) thermometer has a coating of a distinct heat-sensitive liquid crystal material in each of the six squares. b) A firefighter checks the temperature of an aircraft carrier’s ventilation system using a pyrometer.
What Temperature When Not Home
When you’re not at home, keep the temperature between 60 and 65degrees. Plants, animals, housing safety, and outside weather conditions are all factors to consider. The optimal temperature for houseplants is usually between 60 and 75 degrees.
While a single afternoon at 50 degrees is unlikely to harm plants, a week spent in a dwelling with a temperature below 60 could be fatal. Consider your dogs’ requirements as well. Dogs and cats are most at ease when the temperature is above 64 degrees.
Finally, keep the safety of your home in mind. Frozen pipes are the most typical source of anxiety for homeowners. You should not keep the house temperature below 55 degrees if the weather is predicted to be below freezing while you are gone.
Conclusion
Temperature is a sort of kinetic energy that is measured as a physical quantity. The three most important measuring scales with distinct values are Celsius, Kelvin, and Fahrenheit, and the numerous units on temperature deal with various concepts in regard to the relationship between the three. The unit of temperature is typically measured in relation to the particles that make up the material; for example, a high temperature of the substance indicates a rapid flow of the substance’s particles. When the temperature of a substance is determined, the various temperature units are used to represent it. By standardising the quantity, the usage of temperature units makes it generally acceptable.
