A 2-m3 rigid insulated tank initially containing saturated water vapor at 1 MPa is connected through a valve to a supply line that carries steam at 400°C. Now the valve is opened, and steam is allowed to flow slowly into the tank until the pressure in the tank rises to 2 MPa. At this instant the tank temperature is measured to be 300°C. Determine the mass of the steam that has e

5.6449

9 mpa

Explanation:

we are to determine mass of steam that has entered and also the pressure of steam.

After solving

Mass of steam = m2 - m1

= 15.925-10.2901

= 5.6449kg

Then the enthalpy of steam was calculated to be 3109.26

Using steam table, tl = 400⁰c

Hl = 3109.26

Supply line pressure = 9mpa

Please refer to attachment for all calculations

Exclusive distribution; Selective distribution; Intensive distribution

Explanation:

Exclusive distribution refers to the phenomenon where only certain retailers are given the opportunity to carry the product in their retailer shops. For example as in the above case, only one store is exclusively chosen.

Selective distribution is that retailers are carefully selected to engage in the product of selling. For example only a few stores are engaged with in the above question.

Intensive distribution is when all kind of retailers are given the opportunity to keep the products in their shops. For example the last phase described in the question where all sorts of retailers are engaged in selling activity.