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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 need for the Kelvin scale of temperature?
State the following:
The volume of a gas at 0 Kelvin
Fill in the blanks:
The temperature on the Kelvin scale at which molecular motion completely ceases is called……………
-7°C temperature is ______ than 0°C temperature.
The temperatures in Celsius and in Fahrenheit will be same at -40.
Assertion and Reason.
Assertion(A): When a very hot liquid is poured into a thick glass tumbler it cracks.
Reason (R): Unequal expansion of inner and outer glass walls causes the glass to crack.
Mention any two properties of alcohol.
Which of the following is not a scale of temperature?
Convert 100°C into Kelvin.
What are the three scales of temperature?
