A scale is calibrated scuch that the ice point and steam point are 25°X and 125°X respectively. What is the temperature recorded By the celcius and farnheit scale when it records the temperature of a body as 75°X
Answers
Question:
A scale is calibrated such that the ice point and steam point are 25°X and 125°X respectively. What is the temperature recorded By the celcius and farnheit scale when it records the temperature of a body as 75°X
Answer:
Ice point = 32
o
F, Steam point = 212
o
F
Ice point:
The temperature at which ice and water are in equilibrium or the temperature at which water turns into ice . Temperature of ice point is 0
o
C .
Now we have relation between Celsius scale and Fahrenheit scale ,
100
T
C
−0
=
180
T
F
−32
,
given T
C
=0
o
C ,
hence ,
100
0−0
=
180
T
F
−32
,
or T
F
=32
0
F
Steam point:
The temperature at which maximum vapour pressure equals the one atmospheric pressure or the temperature at which water starts boiling . Temperature of steam point is 100
o
C ,
given T
C
=100
o
C ,
hence ,
100
100−0
=
180
T
F
−32
,
or T
F
=212
o
F
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