11. assuming that the gases are ideal, calculate the amount of work done (joules) in each of the following reactions at 25 degrees celsius. a. 4 hcl(g) + ox(9) + 2cl(g) + 2 h2o(g) b. 2 no(g) → na(g) + o2(g)

For a: Work done for the given reaction is 2477.572 J.

For b: Work done for the given reaction is 0 J

Explanation:

To calculate the work done for the reaction, we use the equation:

Ideal gas equation follows:

Relating both the above equations, we get:

    ......(1)

where,

= difference in number of moles of products and reactants =

R = Gas constant = 8.314 J/K.mol

T = temperature =

The chemical reaction follows:

Putting values in equation 1, we get:

Hence, work done for the given reaction is 2477.572 J.

The chemical reaction follows:

Putting values in equation 1, we get:

Hence, work done for the given reaction is 0 J.

mechanics (greek   is that area of science concerned with the behaviour of physical bodies when subjected to forces or displacements, and the subsequent effects of the bodies on their environment. the scientific discipline has its origins in ancient greece with the writings of aristotle and archimedes[1][2][3] (see history of classical mechanics and timeline of classical mechanics). during the early modern period, scientists such as galileo, kepler, and newton laid the foundation for what is now known as classical mechanics. it is a branch of classical physics that deals with particles that are either at rest or are moving with velocities significantly less than the speed of light. it can also be defined as a branch of science which deals with the motion of and forces on objects. the field is yet less widely understood in terms of quantum theory.

explanation: