An example of a heterogeneous system is ice, water and steam. This system has three homogeneous bodies, steam, water and ice. The chemical composition of the three phases is the same , but their physical properties differ drastically.
Temperature drops during throttling Temperature remains constant during throttling Temperature rises during throttling None of the these. Concept: Joule — Thomson coefficient:- When the gas in steady flow passes through a constriction, e. Answer Detailed Solution Below - Concept: Enthalpy is sum of internal energy plus pV work. Answer Detailed Solution Below Option 1 : 0. Answer Detailed Solution Below Option 4 : variable. Explanation: Fusion is solid to a liquid phase transition. Ice actually melt at a lower temperature at a higher pressure Therefore, The slope of the curve is positive as well as negative hence, it is actually variable in nature.
Extreme points of fusion curve are triple point and critical point Extreme points of vaporization curve are triple point and critical point Sublimation curve, fusion curve and vaporization curve meets at critical point Fusion curve for water has positive slope. Answer Detailed Solution Below Option 2 : Extreme points of vaporization curve are triple point and critical point.
Explanation: "Extreme points of fusion curve are triple point and critical point" is an incorrect statement Validation: From the phase diagram, it is seen that the triple point and critical point are the extreme points of the vaporization curve. Answer Detailed Solution Below Option 4 : 0.
Explanation The phase diagram of water is given below. The critical point properties of water are given below. Answer Detailed Solution Below Option 4 : vertical line. Explanation: Mollier chart is drawn between Enthalpy h and entropy s. On Mollier diagram constant pressure line diverge from one another as shown in figure. Answer Detailed Solution Below Option 3 : 0. Concept: Throttling Calorimeter: A throttling calorimeter is based on the principle of throttling the wet steam so that it becomes superheated.
Combined Separating and Throttling Calorimeter A combined separating and throttling calorimeter is therefore found most suitable for accurate measurement of dryness of steam reducing the drawback of Separating Calorimeter i. Answer Detailed Solution Below Option 2 : vertical line. Explanation: Mollier Diagram: Mollier diagram is enthalpy h versus entropy s plot.
It consists of a family of constant pressure lines, constant temperature lines and constant volume lines plotted on enthalpy versus entropy coordinates. If the temperature remains constant the slope will remain constant. If the temperature increases the slope of the isobar will increase. For the saturated liquid and saturated vapour i. Saturated vapor only Superheated vapor only At a pressure higher than the original pressure A mixture of saturated liquid and vapor.
Explanation: A separating and throttling calorimeter is a combination of separating and a throttling calorimeter.
The Separating calorimeter: It consists of two concentric chambers, the inner chamber and the outer chamber, which communicates with each other through an opening at the top. Download and print Mollier Diagram for Water - Steam.
The Mollier diagram is useful when analyzing the performance of adiabatic steady-flow processes, such as flow in nozzles, diffusers, turbines and compressors. The quantity of saturated vapor in unit mass of wet vapor , denoted by x , is referred to as the. The value can be verified by using the steam table.
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