tpo 9

Essay topics:

tpo 9

The reading claims that the fuel cell engines have several advantages over internal combustion engines and will probably soon replace them and it provdes three reasons of support. In contrast, the professor states that the reading is optimistic but the fuel cell engines are not the solutions and she refutes each of the author's reasons.

First, the article avers that the hydrogen needs for fuel cell engines can be derived from various plentiful sources and this would solve the problem of the internal combustion engine, which it relies on petroleum. However, the speaker opposes this point by saying that hydrogen is not easily available and hydrogen is not directly form from water. In fact, she mentions that hydrogen should obtain in pure liquid which is difficult to produce since it is an artificial substance. She gives an example to illustrate this point. She says that hydrogen needs cold environment under -3 and this is not easy to obtain since it requires equiments to preserve this substance.

Second, the passage posits that hydrogen based fuel cells are attractive because they will solve many the world's pollution problems. On the other hand, the lecturer counters this point by stating that this will not solve the problem and this engine would produce pollution. Actually, she argues that to create pure hydrogen, they need to use purification process and this process are using oil and coal that pollute the environment so factories would pollute.

Third, the article asserts that fuel cell engines will soon be economically competitive because people will spend less money to operate it. Conversely, the professor casts doubt on this point by explaining that the cell engine is too expensive because it needs hydrogen that is very expensive to obtain. In addition, hydrogen does not produce electricity and the effort to make it from cheaper materials is unsuccessful.

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internal combustion engine, which it relies on petroleum.
internal combustion engine, which relies on petroleum.

and this process are using oil
and this process is using oil

Sentence: The reading claims that the fuel cell engines have several advantages over internal combustion engines and will probably soon replace them and it provdes three reasons of support.
Error: provdes Suggestion: proves

Sentence: She says that hydrogen needs cold environment under -3 and this is not easy to obtain since it requires equiments to preserve this substance.
Error: equiments Suggestion: equipment

flaws:
No. of Words: 307 250
Around 250 words wanted

Attribute Value Ideal
Score: 25 in 30
Category: Very Good Excellent
No. of Grammatical Errors: 2 2
No. of Spelling Errors: 2 2
No. of Sentences: 13 12
No. of Words: 307 250
No. of Characters: 1558 1200
No. of Different Words: 155 150
Fourth Root of Number of Words: 4.186 4.2
Average Word Length: 5.075 4.6
Word Length SD: 2.445 2.4
No. of Words greater than 5 chars: 115 80
No. of Words greater than 6 chars: 96 60
No. of Words greater than 7 chars: 55 40
No. of Words greater than 8 chars: 32 20
Use of Passive Voice (%): 0 0
Avg. Sentence Length: 23.615 21.0
Sentence Length SD: 6.258 7.5
Use of Discourse Markers (%): 0.769 0.12
Sentence-Text Coherence: 0.366 0.35
Sentence-Para Coherence: 0.596 0.50
Sentence-Sentence Coherence: 0.171 0.07
Number of Paragraphs: 4 4