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Question
Discuss the mechanical equilibrium.
Solution
Mechanical equilibrium: Consider a gas container with the piston. When some mass is placed on the piston, it will move downward due to downward gravitational force, and after certain humps and jumps the piston will come to rest at a new position. When the downward gravitational force given by the piston is balanced by the upward force exerted by the gas, the system is said to be in mechanical equilibrium. A system is said to be in mechanical equilibrium if no unbalanced force acts on the thermodynamic system or on the surrounding by a thermodynamic system.
Mechanical equilibrium
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