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olga2289 [7]
3 years ago
10

PLEAS HELP ASAP!!! Which of these statements best explains why the running costs for geothermal power plants are very low?

Chemistry
1 answer:
natima [27]3 years ago
4 0
Correct answer is <span>Fuels do not have to be purchased to generate power.</span>
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Answer:

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Explanation:

In order to decide which base is strongest we need to calculate its PKb

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A large Kb value and small PKb value gives the strongest base

 Compound                   Kb                           PKb      

(A) C6H5NH2 -         4 x 10^-10                      9.349

(B) NH3                     1.76x 10^-5                    4.754

(C) CH3NH2              4.4x 10^-4                     3.357

(D) (CH3CH2)2NH   8.6x 10^-4                     3.066

(E) C5H5N                  1.7x10^-9                      8.77  

Clearly (CH3CH2)2NH is the strongest base.

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