Chapter 2 Basic Concept Pdf Pressure Measurement Temperature

Chapter 2 Fluid Pressure And Its Measurement Pdf Pdf Pressure Chapter 2 basic concept free download as pdf file (.pdf), text file (.txt) or view presentation slides online. thermodynamics is the study of energy and energy transfer involving physical and chemical processes. it began focusing on the ability to convert heat into work but now considers broader energy relationships in matter. There are two types of dimensions, primary or fundamental and secondary or derived dimensions. primary dimensions are: mass, m; length, l; time, t; temperature, t. secondary dimensions are the ones that can be derived from primary dimensions such as: velocity (m s2), pressure (pa = kg m.s2).

Ch 2 Pressure Measurement Pdf For a thermodynamical (or macroscopic) system, all there is to know about it can be summarised by four thermodynamical variables. two of these, the pressure, p, and the temperature, t , are called intensive variables as they do not depend on the amount of material in the system. The gas temperature scale has a natural zero — the temperature at which the pressure of an ideal gas vanishes — and hence we take b = 0. the second point is established by the triple point of water, the unique temperature and pressure at which ice, water, and water vapor coexist. Pressure, temperature, and water content (i.e., relative humidity or dew point temperature) are commonly cited by weather forecasters. but, other properties like wind speed and chemical composition (i.e., pollen count and smog index, for example} are also important under certain circumstances. There are three common scales used to measure temperature: the fahrenheit scale (yuk!) commonly used in this country, the celsius (or centigrade) scale (used in the rest of the world), and the kelvin (or absolute) temperature scale which is part of the si. you need to be able to readily convert between these three scales.

Pressure Pdf Pdf Pressure, temperature, and water content (i.e., relative humidity or dew point temperature) are commonly cited by weather forecasters. but, other properties like wind speed and chemical composition (i.e., pollen count and smog index, for example} are also important under certain circumstances. There are three common scales used to measure temperature: the fahrenheit scale (yuk!) commonly used in this country, the celsius (or centigrade) scale (used in the rest of the world), and the kelvin (or absolute) temperature scale which is part of the si. you need to be able to readily convert between these three scales. Several types of liquid in glass thermometers are used to measure maximum temperature, minimum temperature and soil temperature in addition to ordinary air temperature. Y putting something warm into the fridge. in this chapter, we discuss the concepts of temperature, pressure and thermodynamic equilibrium in a more formal way, and also give definitions of other basic conce. Pressure is sometimes expressed (especially by weather forecasters) in terms of the height of the mercury column. the standard atmospheric pressure, for example, is 760 mmhg at 0°c. Thermodynamics concepts are introduced, including: 1) systems can be open or closed, with closed systems having fixed mass and open systems allowing mass transfer. 2) properties can be intensive or extensive, with intensive properties like temperature and pressure being independent of system size.