How much solar radiation is reflected back by clouds?
1 answer:
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Explanation:
The given data is as follows.
MW = 29 g/mol, = 3.5 R
Formula to calculate minimum amount of work is as follows.
=
= 4.692 kJ/mol
Therefore, total work done will be calculated as follows.
Total work done =
Since, m = . Therefore, putting these values into the above formula as follows.
Total work done =
=
= 24268.96 kJ/min
It is known that 1 kJ/min = 0.0166 kW. Hence, convert 24268.96 kJ/min into kW as follows.
= 402.86 kW
Thus, we can conclude that the minimum work required by an air compressor is 402.86 kW.
Answer:
pH = 2.462.
Explanation:
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In this case, according to the reaction between nitrous acid and potassium hydroxide:
It is possible to compute the moles of each reactant given their concentrations and volumes:
Thus, the resulting moles of nitrous acid after the reaction are:
So the resulting concentration considering the final volume (20.00mL+13.27mL) is:
In such a way, we can write the ionization of this weak acid to obtain:
So we can set up its equilibrium expression to obtain x as the concentration of H3O+:
Next, by solving for the two roots of x, we get:
Whereas the correct value is 0.003451 M. Finally, we compute the resulting pH:
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