Convert the temperature of 200 degree Celsius to the Kelvin scale. (PHYSICS)
The Correct Answer and Explanation is:
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Answer:
To convert 200°C to the Kelvin scale:
K = °C + 273.15
K = 200 + 273.15 = 473.15 K
Explanation:
In thermodynamics and physics, temperature is a fundamental physical quantity used to measure the thermal state of a system. Different temperature scales are used around the world, but the Kelvin scale is the standard unit of temperature in the International System of Units (SI).
The Celsius scale is commonly used in everyday life and scientific work, particularly in chemistry and biology. However, in physics—especially in fields like thermodynamics and kinetic theory—the Kelvin scale is preferred because it is an absolute temperature scale based on absolute zero, the point at which all molecular motion theoretically ceases.
The Kelvin scale starts at absolute zero, which is equivalent to -273.15°C. Thus, the relationship between the Celsius and Kelvin scales is linear and simple:
K = °C + 273.15
When converting a temperature from Celsius to Kelvin, 273.15 is added to the Celsius temperature. This adjustment accounts for the difference in the starting points of the two scales. For example, 0°C is the freezing point of water, which corresponds to 273.15 K. Boiling point of water, 100°C, is equal to 373.15 K.
Using this relationship, converting 200°C to Kelvin is straightforward. By adding 273.15 to 200, the result is 473.15 K. This means that an object or substance at 200 degrees Celsius has a thermodynamic temperature of 473.15 Kelvin.
The Kelvin scale is particularly important because many physical laws and equations, such as the ideal gas law and the Stefan-Boltzmann law, require temperature to be in Kelvin to ensure correct dimensional consistency and to reflect true thermal energy content.
