Temperature scales - thermodynamics, Mechanical Engineering

Temperature Scales:

The temperature of a system can be determined by bringing a 2nd body, a thermometer, into contact with the system and allowing thermal equilibrium to be reached. The value of temperature is found by measuring some temperature dependent property of thermometer. Any such property is called as thermometric property.

To allocate numerical values to the thermal state of the system, it is required to establish a temperature scale on which temperature of system can be read. This requires selection of basic unit and reference state. Thus, the temperature scale can be established by assigning numerical values to certain easily reproducible states. For this purpose it is probable to use the following 2 fixed points:

(1) Ice Point: It is equilibrium temperature of ice having air saturated water at standard Atmospheric pressure.

(2) Steam Point: The equilibrium temp. of pure water having its own vapour of standard atmospheric pressure.

 

SCALE

ICE POINT

STEAM POINT

TRIPLE POINT

KELVIN

273.15K

373.15K

273.15K

RANKINE

491.67R

671.67R

491.69R

FAHRENHEIT

320F

2120F

32.020F

CENTIGRADE

00C

1000C

0.010C

463_Temperature Scales.png

Compansion of references on different scales

 

Posted Date: 10/15/2012 2:05:12 AM | Location : United States







Related Discussions:- Temperature scales - thermodynamics, Assignment Help, Ask Question on Temperature scales - thermodynamics, Get Answer, Expert's Help, Temperature scales - thermodynamics Discussions

Write discussion on Temperature scales - thermodynamics
Your posts are moderated
Related Questions
Assembly Processes The assembly process for machines and mechanisms is the part of the manufacturing process concerned with the consecutive joining of the finished parts into

Explain Soft or Flexible Automation? This system uses tape, a hand-held control box, microprocessors, programmable logic controllers or computers. The system can be reprogramme

Calculating the number of kanban card sets: A hospital desires to set up a Kanban system to manage its supply of blood with the regional blood bank. The regional blood bank tr

significance & relevance of lubrication


what do you mean by law of belting and also explain the crowning of pulleys ?

why the pressure will reduce when the velocity increases

What are the capabilities of STEP Industry-Developed STEP Capabilities AP-203, Configuration Control for 3D Design of Mechanical Parts and Assemblies, provides a very robust

Q. What is the procedure of hot working? A process is defined as hot working if it takes place when the workpiece is above the recrystallization temperature. Hot Working Ad

Draw the Gas welding System and label its parts. Illustrate the several types of flames used in gas welding along with temperature range.