closed system energy change

[Mallika Singh 1G]

is doing work on a closed system the same as adding heat?

[Bilal Pandit 1J]

No, in a closed system, heat and work are two different aspects of energy change.

[Asia Yamada 2B]

No, they are different. Heat is represented by q and work is represented by w. q + w is equal to the change in internal energy of the closed system.

[Kayle Lim 2C]

Both heat and work contribute to energy changes, but they are not the same thing. In a closed system, adding heat would not be equivalent to doing work. I can see how you may have thought applying work is the same as applying heat, but just keep in mind that they are both 2 different factors.

[Jaclyn Dang 3B]

No work is a force over a distance while heat is energy that is transferred as a result of temperature difference. Internal energy is both U= w+q.

[Anthony_Sandoval_1D]

No, they are not the same. Both contribute to a change in energy and give you the internal energy (U). However, work is, as someone earlier mentioned, force over distance whereas heat is the energy transferred over after an increase or decrease in temperature.

[Tanner Bartyczak 1K]

No, work and heat are not the same. Others' explanations are better than I could explain.

[Taha 2D]

No they are different but Both contribute to the internal energy of a system

[AlbertGu_2C]

work and heat both contribute to energy change, but are not the same thing

[Sera Aintablian 2E]

On a closed system, work can be done AND heat can be transferred. They are represented by two different variables, "w" and "q," respectively.

[Ranen_Chang_2G]

Work and heat both contribute to internal energy change, given the equation delta U=q+w, however they are two different factors.

[Jacob Schwarz-Discussion 3I]

No these are different because adding heat is defined by q whereas doing work is defined by w. However, both heat and work do add up to giving the internal energy of the system

[Chudi Onyedika 3A]

Although it could transfer energy like heat, work is not the same.

[Kayla Booker 1F]

No, adding heat is represented by q and work is represented by w, they are both needed to calculate the change in internal energy

[Charisma Arreola 2F]

No, although it is similar.

[Nan_Guan_1L]

In a closed system, you would need to consider both work and heat as the two aspects are different in nature. The total amount of energy change doesn’t really tell you much, since you would also want to consider the nuance changes going on inside the closed system.

[Bai Rong Lin 2K]

No, they would not be the same but it would be quite similar