Answer:
C)185,500 KJ
Explanation:
Given that
Latent heat fusion = 333.23 KJ/kg
Latent heat vaporisation = 333.23 KJ/kg
Mass of ice = 100 kg
Mass of water = 40 kg
Mass of vapor=60 kg
Ice at 0°C ,first it will take latent heat of vaporisation and remain at constant temperature 0°C and it will convert in to water.After this water which at 0°C will take sensible heat and gets heat up to 100°C.After that at 100°C vapor will take heat as heat of vaporisation .
Sensible heat for water Q
For water
Q=4.178 x 40 x 100 KJ
Q=16,712 KJ
So total heat
Total heat =100 x 333.23+16,712 + 60 x 2257 KJ
Total heat =185,455 KJ
Approx Total heat = 185,500 KJ
So the answer C is correct.
Answer:
Power required to drive the escalator shall be equal to the rate at which the energies of the persons is increased.
As we infer from the above equation If the velocity of the escalator is doubled then the Power required will also be doubled and become 31.215kW
Answer: D
Find the answer in the explanation
Explanation:
Elastic solid will obey Hooke's law which state that the force applied is proportional to the extension provided the elastic limit is not exceeded.
Examples of Newtonian fluid are water, glycerol, honey and all organic solvents
When comparing solids to fluids, the below statement is true
We can therefore conclude that
For elastic solids, stress is linearly related to strain, and for Newtonian fluids, stress is linearly related to strain rate
The answer mostly likely is: “1” due to the fact it is well ordered, and follows a similar thought process, best of luck!
