Question

what will be the sign of work done in 2SO2(g) + O2(g) ===> 2SO3(g)

Answer 1

Answer:

The sign of work done is positive.

Explanation

Work done is a path function and depends on the path followed and not on the initial and final states. When work is done on the system, the energy of the system increases. Thus, the work will be positive. When the work is done by the system, it is taken as negative work.

In the given reaction 2SO₂₍g₎+O₂₍g₎→2SO₃₍g₎, the sign of the work done will be positive as there is a decrease in the volume from the reactant to the product. Thus, the work will be done on the system.