Answer:
A) True. I hope this helps
Answer:
- B. Precipitation require the diffusional activation energy plus an additional energy to form the precipitate.
Explanation:
Precipitation is the creation of a solid from a solution. When the reaction occurs in a liquid solution, the solid formed is called the precipitate.
The formation of a precipitate indicates the occurrence of a chemical reaction.
Precipitation of carbide requires alot of energy which the diffusion activational energy alone cannot achieve and this was calculated to be 225.6 kJ/mol.
Answer:
The front view, is a drawing of the block, as if you are looking directly at the front of the object. The side view, is a drawing of the block, when it has been rotated so that one of its sides is now directly in view. The plan view, is a 'birds eye' view, from above.
Answer:
specialist focus in one very specific thing, generalist focus and many things, they are like a jack of all trades
Answer:
a)148.9hp
b)25.2kg
Explanation:
Hello!
To solve this exercise follow the steps below.
1. Find the power the generator needs to operate at 100Kw,
This is done by remembering that efficiency in a generator is the ratio between real power and ideal power.
where
α=generator efficiency =0.9
Wi=nominial or ideal efficiency=100Kw
Wr=real effiency
solving for Wr
the power that the combustion engine must deliver is 111Kw for the generator to deliver 100Kw, Now use conversion factor to know the value in horsepower
2. Find the engine supply power using the combustion engine efficiency definition
α=engine efficiency =0.35
Wo = output power
=111.11Kw
Wi = supply power
solving for Wi
3. use the calorific power of diessel (CP=45KJ /g) to find the mass flow, remember that the supply power is the product of the mass flow and the caloric power
Wi=m(CP)
m=mass flow
solving for m
4. The mass flow is the ratio between the mass consumed and the time (1h) in this way we can find the diessel consumed in one hour at full load
M=diessel mass consumed
m=M/t
M=mt