Essay topics
The listening claims that fuel-cell engines are not the practical solution or alternative to the commonly used I.C. (internal combustion) engines. The reading passage, by contrast suggests that these fuel-cell engines have several advantages over the I.C. engines.
According to the lecture, pure hydrogen that is readily available cannot be used directly as hydrogen must be in liquid state to serve the purpose of combustion. This liquid hydrogen is highly artificial and hypothetical proposition as it is very difficult to produce liquid hydrogen because of very low temperature (250 degree cels...
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flaws:
No. of Words: 339 250
Attribute Value Ideal
Score: 28 in 30
Category: Excellent Excellent
No. of Grammatical Errors: 0 2
No. of Spelling Errors: 0 2
No. of Sentences: 13 12
No. of Words: 339 250
No. of Characters: 1785 1200
No. of Different Words: 160 150
Fourth Root of Number of Words: 4.291 4.2
Average Word Length: 5.265 4.6
Word Length SD: 2.748 2.4
No. of Words greater than 5 chars: 148 80
No. of Words greater than 6 chars: 124 60
No. of Words greater than 7 chars: 77 40
No. of Words greater than 8 chars: 50 20
Use of Passive Voice (%): 0 0
Avg. Sentence Length: 26.077 21.0
Sentence Length SD: 7.859 7.5
Use of Discourse Markers (%): 0.538 0.12
Sentence-Text Coherence: 0.381 0.35
Sentence-Para Coherence: 0.599 0.50
Sentence-Sentence Coherence: 0.097 0.07
Number of Paragraphs: 4 4