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Byju's Answer
Standard XII
Physics
The Kelvin Scale
Centigrade Ce...
Question
Centigrade (Celsius) scale can be converted into Kelvin scale by formula
A
Ω
0
C
=
Temperature in Kelvin
+
273.15
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B
Ω
0
C
=
Temperature in Kelvin
−
273.15
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C
Ω
0
C
=
Temperature in Fahrenheit
+
273.15
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D
Ω
0
C
=
Temperature in Fahrenheit
−
273.15
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Solution
The correct option is
B
Ω
0
C
=
Temperature in Kelvin
−
273.15
Celsius scale can be converted into Kelvin scale by ,
Ω
o
C
=
Temperature in Kelvin
−
273.15
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0
Similar questions
Q.
Assertion :Temperature below
0
0
C
are possible in Celsius scale but in Kelvin scale, negative temperature is not possible. Reason: The Kelvin scale is related to Celsius scale as follows : K =
0
C
- 273.15.
Q.
Assertion :The lowest attainable temperature is absolute zero,i.e.,
0
K
=
−
273.15
o
C
.
Reason: Size of each degree on Kelvin scale is same as that on Celsius scale.
Q.
At what temperature in degree Kelvin the Fahrenheit and Kelvin scales of temperature give the same reading ?
Q.
Write short notes on
1.The Celsius temperature scale
2.The Fahrenheit temperature scale
3.The Kelvin temperature scale
Q.
Answer the following:
(a) The triple-point of water is a standard fixed point in modern thermometry. Why? What is wrong in taking the melting point of ice and the boiling point of water as standard fixed points (as was originally done in the Celsius scale )?
(b)
There were two fixed points in the original Celsius scale as mentioned above which were assigned the number
0
o
C
and
100
o
C
respectively. On the absolute scale one of the fixed points is the triple-point of water, which on the kelvin absolute scale is assigned the number 273.16 K. What is the other fixed point on this (kelvin) scale?
(c)
The absolute temperature (Kelvin scale ) T is relate to the temperature
t
c
on the Celsius scale by
t
c
=
T
−
273.15
. Why do we have 273.15 in this relation and not 273.16?
(d)
What is the temperature of the triple-point of water on an absolute scale whose unit interval size is equal to that of the Fahrenheit scale ?
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