contestada

When a Celsius thermometer is inserted in a boiling liquid, the mercury thread
rises above the lower fixed point by 19.5cm. Find the temperature of boiling
liquid if the fundamental interval is 25cm.

Respuesta :

The temperature of boiling liquid will be 78°C.

To find the correct answer, we need to know about the upper and lower fixed points of the thermometer.

How to find the temperature of boiling liquid?

  • The lower fixed point is measured by the melting temperature of pure water.
  • Given that, the fundamental interval is 25cm, which is the separation between the upper and lower fixed points.
  • We have the equation for the temperature as,

                           [tex]T=\frac{x-x_0}{x_{100}-x_0} *100[/tex]

where,

[tex]x=[/tex] length of liquid at T temperature = 19.5cm.

[tex]x_0=[/tex] length of liquid thread at ice point = 0°C

[tex]x_{100}=[/tex] length of liquid thread at steam point = 25 cm.

  • Substituting values, we get,

                            [tex]T=\frac{19.5-0}{25-0}*100\\ T=0.78*100=78^0C[/tex]

Thus, we can conclude that, the temperature of boiling liquid will be 78°C.

Learn more about the thermometer here:

https://brainly.com/question/14444112

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