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प्रश्न
Define absolute zero and absolute scale of temperature. Write about the relationship between °C and K.
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
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……………
If a substance is heated or cooled, the linear expansion occurs along the axis of
The lower fixed point on the Celsius scale is ______.
In greek, Centium means 100 and Gradus means steps, both words make it Centigrade and later Celsius.
Assertion and Reason.
Assertion(A): Heat energy is transferred from one body to another due to a temperature difference between them.
Reason (R): Heating a substance causes a rise in temperature.
Convert 100°C into Kelvin.
______ is known as an absolute scale.
Convert the following
40°C to Fahrenheit (°F)
Convert the following
35°C to Kelvin
