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Closed, open and isolated system-Thermodynamics system:
Sol: In thermodynamics the system can be defined as the quantity of matter or region in space upon which attention is concentrated for sake of analysis. These systems are referred as thermodynamics system.
It is bounded by arbitrary surface called as boundary. The boundary can be real or imaginary, can be at rest or in motion and may can its size or shape.
Everything outside the arbitrary selected boundaries of the system is called as environment or surrounding.
Figure--The system The union of system and surrounding is altogether termed as universe. Universe = System + Surrounding
Types of system
The analysis of thermodynamic processes comprises of study of the transfer of mass and energy across the boundaries of system. On the basis system can be mainly classified into three parts.
(i) Open system (ii) Closed System (iii) Isolated system
Convert the following readings of pressure to KPa absolute, assuming that the barometer reads 760mm Hg: (a) 100 psig, (b) 8in. Hg vacuum, and (c) 76in Hg gage.
Complete the following problem from the text by Megson. Note that since the answers are given, it is essential that you show and justify all work to receive full credit. Required
a masonry pier 3m*4m supports vertical load of 600kn at point (1.2,1),find stresses at corner of pier
can a swimming pool that is full be cracked or lifted by hydrostatic pressure?
For the normal force in Figure to have the same magnitude at all points on the vertical track, the stunt driver must adjust the speed to be different at different points. Suppose,
Five jobs are performed first-on Machine-I and then on Machine-II. Time in hours taken by each job on each machine is given below :
State required Features of Fourier Law. What are the factors on which co-efficient of thermal conductivity (K) depends upon ? Write the unit of K.
Sketch stress-strain diagram for Mild Steel in tension and also describe the important points. Also draw stress-strain curve for cast Iron, concrete and for elastic rubber only.
What are the Alluvial sediments Alluvial sediments are characterized by stratification or layering and fine grained soil layers have higher compressibility as compared to coars
Carburettor Tuning : It is very important that the carburettor is tuned properly to attain the best fuel efficiency and performance of the motorcycle. Since air screw is factory
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