Question

1. Lower standard point on Fahrenheit scale is
3. Alcohol more than mercury
2. Mercury is commonly used as
liquid as it stays a liquid over a wide range
in temperature.

4. The temperature of pure melting ice is taken
standard point.
5. The Sl scale of temperature is called
scale.
as the​

Answer 1

Answer:

1) 32 degrees

Fahrenheit scale is one of the three commonly used temperature scales (other two being Celsius and Kelvin scales). This was developed by Daniel Gabriel Fahrenheit, a German physicist. This scale was based on three fixed points. The lower fixed point of 32 degrees corresponded to freezing of water

2) Also, the melting and boiling point mercury is very high. Therefore, the mercury remains in liquid state for a wide range of temperature. The viscosity of mercury is greater than water at room temperature. This implies that the mercury does not have high fluidity.

3) Alcohol expands more than mercury because of its low density and volatile nature. Mercury thermometers have the advantage of being small and compact due to its low expansion. Mercury thermometers can be used to measure higher temperature than alcohol thermometers because of its high boiling point.

4) At temperatures above 32°F (0°C), pure water ice melts and changes state from a solid to a liquid (water); 32°F (0°C) is the melting point.

5) Empirical scales measure temperature in relation to convenient and stable parameters, such as the freezing and boiling point of water. Absolute temperature is based on thermodynamic principles, using the lowest possible temperature as the zero point and selecting a convenient incremental unit.