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प्रश्न
Define absolute zero and absolute scale of temperature. Write about the relationship between °C and K.
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उत्तर
Absolute zero
The temperature of -273°C is called absolute zero.
`"V" = "V"_°((273 + "t")/273)`
Volume at -273°C = V° `((273 - 273)/273) = 0`
Absolute or Kelvin scale of temperature
The temperature scale with its zero at -273°C and each degree equal to one degree on the Celsius scale is called Kelvin or the absolute scale of temperature.
Conversion of temperature from Celsius scale to Kelvin scale and vice versa
The value on the Celsius scale can be converted to the Kelvin scale by adding 273 to it.
Example:
20°C = 20 + 273 = 293 K.
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संबंधित प्रश्न
What is the relationship between the Celsius and Kelvin scales of temperature?
Convert (i) 273°C to Kelvin and (ii) 293 K to °C.
Fill in the blanks:
The temperature on the Kelvin scale at which molecular motion completely ceases is called……………
Which one of the following scales has a lower fixed point at 0°C?
The lower fixed point on the Celsius scale is ______.
Temperature of the universe in the earliest moments after the big bang is ______.
In humans, the average internal temperature is 98.60°C.
What is the freezing point of water on the Fahrenheit scale?
Differentiate between the three temperature scales.
Convert the following
35°C to Kelvin
