The hunter walks north 8 km and then 3km south. find the displacement

5 km North

Explanation:

Displacement refers to the distance covered in a specific direction.

In this case,

Distance covered due north = 8 km

Distance covered due south = 3 km

Therefore;

If we take the distance towards north to be +8 km

The distance towards south to be - 3 km

Then;

Displacement = +8km + (-3km)

                      = + 5km

                       = 5 km North

Therefore;

The displacement is 5km towards North.

answer: the value of enthalpy change will be -152.80 kj.

solution:

pressure = 1atm , temperature = = 298 k

given that pressure and temperature are same in both gases , the number of moles of both gases can be determined by the ideal gas equation.

according to reaction 3 moles no are reacting with 1 mol of ,then 0.49 mol of no will react with moles of ozone that is 0.16 moles of ozone. since, no is limiting reagent and is an excessive reagent.

enthalpy change for the reaction between the given volumes of the gases is :