Work is done when a force applied to an object causes a displacement. When a force applied to an object causes a distance , work is said to be done . Example A woman pushing a cart in a shopping mall. Work is done because force is applied by the woman and it causes the object(cart) to move a distance. The S.I unit of work is joules.
Work can be represented mathematically as
Work = force × displacement
Force = 15 N
distance = 0.60 m
W = F × d
W = 15 × 0.60
Work done = 9 Joules
Note that weight is a force and is defined as the force exerted on a body.
Work Done = force x displacement. So in this case the 15N is the force (because weight is a force) and 0.60m is the displacement. Therefore 15 x 0.6 = 9 Joules of work done (btw, work done can also be referred to as energy transferred)
N2 + 3H2 → 2NH3. 14 moles a. If 6 mol of H2 are consumed, how many moles of NH3 are produced? ... a 3 mol H₂. 4. How many moles of nitrogen are needed to make 11 moles of NH3? Il mol NH₃ x Imol Na = 15.5
