Can work be done by a system without changing its volume?

Question

Answer

No

Answer

No

Answer

No

Answer

Its reason lies again in d thermodynamical principles ...d concept of no existence of self perpetual machine...wherein u notice appearance of energy from work which is due to d condensing of corresponding vol. of gas enclosed in a piston system...hope this serves as d reason of ur expectation..

Answer

No

Answer

No work done because all the heat goes into changing the temperature.mathematically,W=-p∆V when there is no change in volume then W=-p(V-V)that is W=0 Hence work done is zero.

Answer

Yes

Answer

No

Answer

Can you tell the reason?

Answer

No

Answer

Can Work be Done Without Changing Volume?

Yes, work can be done by a system without changing its volume. Work is defined as the transfer of energy from one object or system to another. It occurs when force is applied to an object and it is moved in the direction of the force. In this case, the volume of the system remains constant, but work is still being done.

Explanation:

Definition of work:
Work is defined as the product of the force applied on an object and the displacement of the object in the direction of the force. Mathematically, work (W) is given by the equation:
W = F * d * cosθ,
where F is the force applied, d is the displacement, and θ is the angle between the force and displacement vectors.

Work without volume change:
Work can be done without changing the volume of a system in various scenarios. Here are a few examples:

1. Compression or expansion of a gas: In a closed system, work can be done by compressing or expanding a gas without changing its volume. For instance, in an internal combustion engine, work is done by the expanding gases to move the piston, but the volume of the system remains constant.

2. Electrical work: Electrical work is another example where work is done without changing the volume. When an electric current flows through a wire, it can perform work on other electrical components, such as a motor or a light bulb, without affecting the volume of the system.

3. Chemical reactions: Work can also be done during chemical reactions without altering the volume. For example, when a chemical reaction occurs in a closed container, the molecules may collide and exert forces on each other, leading to work being done.

4. Mechanical work on a stationary object: Even when an object is stationary, work can still be done on it without changing its volume. For instance, if a person pushes against a wall, they are exerting a force and doing work, but the volume of the wall remains constant.

5. Work on a system with internal forces: In a system with internal forces, work can be done without changing the volume. This can happen, for example, when an object is lifted vertically against gravity. The work done is equal to the force applied multiplied by the vertical displacement, regardless of the volume of the object.

Conclusion:
In conclusion, work can indeed be done by a system without changing its volume. Work is a transfer of energy, and it can occur through various processes such as compression or expansion of gases, electrical work, chemical reactions, exerting forces on stationary objects, and lifting objects against gravity. The volume of the system does not necessarily change for work to be done, as long as there is a force applied and a displacement in the direction of the force.

Answer

No

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