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Comparison between work and heat - thermodynamics:
There are a number of similarities between heat and work.
1. Both heat and work are transient phenomena. The systems do not have heat or work. When a system undergoes some change, heat transfer or work done can occur.
2. The heat and work are boundary phenomena. They are normally observed at the boundary of system.
3. The heat and work signify energy crossing boundary of the system.
4. The heat and work are path functions and hence they are inexact differentials.
5. Heat and work are not properties of the system.
6. Heat transfer is energy interaction because of temperature difference only. All other energy interactions can be called as work transfer.
7. The magnitude of heat transfer or work transfer depends on the path followed by system during change of state.
truss is shown in the following figure. Compute the horizontal deflection of joint D produced by both the load and fabrication error (bar AE is 40mm too long). For all bars, area A
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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
To make strawberry jam, a two-stage process is used as shown in the figure. First, crushed strawberries and sugar are mixed in a 45:55 ratio by mass. Then the mixture is heated to
Matter, particle and body: Matter is anything which occupies space, possesses mass provides resistance to any stress, example Iron, air, stone, Water. A body of negligible
laws of belts ?
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what are the advanteges of the working ?
Specifi c Heat: The specific Heat of a solid or liquid can be usually defined as heat required for raising unit mass through one degree temperature rise. That is, dQ = m
p-v diagram
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