Temperature is a physical quantity that expresses quantitatively the perceptions of hotness and coldness. Temperature is measured with a thermometer.
Thermometers are calibrated in various temperature scales that historically have relied on various reference points and thermometric substances for definition. The most common scales are the Celsius scale with the unit symbol °C (formerly called centigrade), the Fahrenheit scale (°F), and the Kelvin scale (K), the latter being used predominantly for scientific purposes. The kelvin is one of the seven base units in the International System of Units (SI).
Absolute zero, i.e., zero kelvin or −273.15 °C, is the lowest point in the thermodynamic temperature scale. Experimentally, it can be approached very closely but not actually reached, as recognized in the third law of thermodynamics. It would be impossible to extract energy as heat from a body at that temperature.
Temperature is important in all fields of natural science, including physics, chemistry, Earth science, astronomy, medicine, biology, ecology, material science, metallurgy, mechanical engineering and geography as well as most aspects of daily life.
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supposed to be sa ganitong setup ba makakapaglaro ako ng AAA Title ng magdamag?
If ever Im planning to change the case with...
Wimbledon tennis balls are all stored at perfect room temperature
All Wimbledon tennis balls are kept at 68 degrees Fahrenheit because the temperature of the tennis ball affects how it bounces, and all tennis balls must be kept as consistent as possible for competitive reasons.
When the ball...
The coldest temperature ever recorded was -144 degrees Fahrenheit
You might think you're accustomed to frigid air and blustery winds, but the average winter day has nothing on the coldest day ever recorded, which was -144 degrees Fahrenheit.
The temperature was recorded in Antarctica during a...
Answer the following problems:
1. Helium gas has a volume of 250 mL at 0°C at 1.0 atm. What will be the final pressure if the volume is reduced to 100 mL at 45°C?
2. The volume of a gas at 27°C and 700.0 mmHg is 600.0 mL. What is the volume of the gas at -20.0°C and 500.0 mmHg?
3. A 2.5 L of...