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MatroZZZ [7]
3 years ago
10

Which question about dogs could be answered through investigation

Chemistry
1 answer:
Olegator [25]3 years ago
4 0
"How fast does an Australian terrier grow?" is the answer
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What is the Damkohler number? b) What is the significance of a system with a low Damkohler number?
elena-s [515]

Explanation:

(a)  A number which is dimensionless and provides us an estimate of the degree of conversion which can be achieved in CSTR, that is, continuous stirred tank reactor is known as Damkohler number.

This number is denoted as Da.

Mathematically,     Da = \frac{\text{reaction rate}}{\text{convection rate}}

             Da = \frac{-rA \times V}{Fa_{o}}

Now, for first order system, Da = \frac{-rA \times V}{Fa_{o}}

                        = \frac{k \times CA_{o} \times V}{v \times CA_{o}} = Tk

where,      rA = rate of reaction

                V = volume of reactor

                Fa_{o} = molar flow rate of component A

                 k = rate constant

               CA_{o} = initial concentration of A

                  v = volumetric flow rate of A

                  T = residence time

(b)   Since, from a given Damkohler number we can figure out the possible conversion of CSTR, that is, continuous stirred tank reactor.

So, if we have a low Damkohler number then the system will give us a less conversion formula. As the conversion is as follows.

                       X = \frac{Da}{Da + 1}

Hence, we can conclude that Da \leq 0.1 will give less than 10% conversion as calculated by using above formula.

8 0
3 years ago
A 15.9 g sample of sodium Carbonate is added to a solution of acetic acid weighing 20 g. the 2 substances react, releasing carbo
adell [148]

Answer:

hope that helps

Explanation:

The total mass of reactants taken = 15.9 + 20.0 = 35.9 gm. From the conservation of mass the final mass of the contents of the vessel should also be 35.9 gm. But it is only 29.3 gm. The difference is due to the mass of released carbon dioxide gas.Hence the mass of carbon dioxide gas released = 35.9 – 29.3 = 6.6 gm

3 0
2 years ago
When the ventricles contract, blood is pumped
pantera1 [17]

Answer:

it is a because blood is pumped but heart so the answer is A

4 0
2 years ago
1. Convert 1m3 to cm3.
yulyashka [42]

Answer:

1000000 cubic centimetre

5 0
2 years ago
Read 2 more answers
The largest ruby isnthe world is 10.9 cm long, 9.1 cm wide and 5.8 cm thick, giving
Maslowich
You have to use density=mass/volume formula:


3.97= \frac{x}{575}

Solve for x and you get 2282.75 grams
6 0
3 years ago
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