A constant-volume gas thermometer filled with air whose pressure is

Brody Collins

Brody Collins

Answered question

2022-05-13

A constant-volume gas thermometer filled with air whose pressure is 101kPa at the normal melting point of ice. What would its pressure be at the normal point boiling of water (373K) ?

Answer & Explanation

Gallichi5mtwt

Gallichi5mtwt

Beginner2022-05-14Added 18 answers

The pressure on a constant volume gas thermometer at normal melting point is 101kPa, normal boiling point of water is 373.15 K and normal melting point of ice is 273.15 K
This is a constant-volume system so that the pressure is directly proportional to temperature of the system.
Write the expression for the relation between pressure and temperature of system at normal boiling point of water.
P w T w = P r e f T r e f
Here,
P w is the pressure of the system at normal boiling point of water
T w is the normal boiling point water
P r e f is the pressurre of the system at normal melting point of ice
T r e f is the temperature of the system at normal melting point of ice
Rearrange the above equation to get P
Substitute 101 kPa for P r e f 373.15 K for T w and 273.15 K for T r e f to get P w
P = ( 373.15 K 273.15 K ) ( 101 k P a ) = 138 k P a
Conclusion:
Thus the pressure of a constant-volume gas thermometer at a normal boiling of water is 138 kPa.

Do you have a similar question?

Recalculate according to your conditions!

Ask your question.
Get an expert answer.

Let our experts help you. Answer in as fast as 15 minutes.

Didn't find what you were looking for?