The Centigrade Scale has a zero mark for the temperature of ice at one atmospheric pressure, with 100°C indicating the temperature of boiling water at 1 atmospheric pressure. Each part between these marks is divided into 100 equal parts, each being 1°C. The Fahrenheit Scale marks the melting point of ice at 1 atmospheric pressure as 32°F and that of boiling water as 212°F, with the space between these marks divided into 180 equal parts, each being 1°F. The Absolute or Kelvin Scale sets the melting point of ice at 1 atmospheric pressure as 273K, with water boiling at 373K or more precisely at 373.16K. The temperature on the Kelvin scale is equal to the temperature in °C plus 273.16.
What is the Centigrade Scale based on?
The Centigrade Scale is based on the temperature of ice at one atmospheric pressure and the boiling point of water at 1 atmospheric pressure.
Explain the Fahrenheit Scale.
The Fahrenheit Scale marks the melting point of ice at 32°F and the boiling point of water at 212°F, with the space between these marks divided into 180 equal parts.
Describe the Absolute or Kelvin Scale
The Absolute or Kelvin Scale sets the melting point of ice at 273K and the boiling point of water at 373K, with the temperature on this scale calculated by adding 273.16 to the Celsius temperature.
Which scale is used to measure temperature in the Gas Laws?
The Kelvin Scale is used to verify the relationship V/T = k in the Gas Laws, where pressure and number of moles are constant.
Why was a new temperature scale developed?
A new temperature scale starting from -273.16°C (0 Kelvin) was developed as Charles's law was not obeyed when temperature was measured on the Celsius scale.
What is the zero mark on the Centigrade scale?
a) 0°C
b) 32°F
c) 273K
d) 0°C
Answer: d) 0°C
What is the freezing point of water in the Centigrade scale?
a) 0°C
b) 32°F
c) 273K
d) 0K
Answer: a) 0°C
Which scale has the mark 212°F for the boiling point of water?
a) Centigrade Scale
b) Kelvin Scale
c) Fahrenheit Scale
d) Rankine Scale
Answer: c) Fahrenheit Scale
What is the temperature at which water boils in the Absolute or Kelvin Scale?
a) 0K
b) 100K
c) 353K
d) 373K
Answer: d) 373K
How is temperature on the Kelvin scale related to temperature in Celsius?
a) K = °C + 273.16
b) K = °C - 273
c) K = °C + 273.16
d) K = °C + 100
Answer: a) K = °C + 273.16