The author states that the hydrogen based fuel-cell engines are better than petrol and diesel engines and he presents three hypotheses to prove his point. However, the lecturer rebuts his view point by providing following justifications.
First, the author says that though the hydrogen is plentiful in the environment and petrol is a finite source of energy but it cannot be the substitute of petrol. The lecturer refutes this point and explains that although the hydrogen is present in the environment in a huge amount in natural gas and water but it cannot be utilized in its original form. In fact it has to be obtained in liquid form which is intricate. To produce and to store hydrogen in liquid form requires -200 degree Celsius temperature which is not at all a practical solution.
Second, the professor challenges the point said in the passage that hydrogen based fuel-cell engine will not cause pollution. He clears the doubt by telling that the factories burn coal and oil in the process of transforming the hydrogen into pure usable form that causes massive pollution. Thus, all the points made in the reading are contraindicated by the lecturer.
Last but not the least, the lecturer challenges the statement made in the passage that the hydrogen based fuel-cell engine are more economical than petrol engines. He tells that the energy used to undergo the process to generate the energy to run the engine requires components that are made up of platinum which is extremely expensive. Hence, it is not true o say that using hydrogen is cheaper.
Grammar and spelling errors:
Line 9, column 1, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
... say that using hydrogen is cheaper.
^^^
Discourse Markers used:
['but', 'first', 'hence', 'however', 'if', 'second', 'so', 'thus', 'as to', 'in fact']
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance in Part of Speech:
Nouns: 0.251773049645 0.261695866417 96% => OK
Verbs: 0.191489361702 0.158904122519 121% => OK
Adjectives: 0.0851063829787 0.0723426182421 118% => OK
Adverbs: 0.0354609929078 0.0435111971325 81% => OK
Pronouns: 0.0354609929078 0.0277247811725 128% => OK
Prepositions: 0.117021276596 0.128828473217 91% => OK
Participles: 0.0496453900709 0.0370669169778 134% => OK
Conjunctions: 2.67151852818 2.5805825403 104% => OK
Infinitives: 0.0248226950355 0.0208969081088 119% => OK
Particles: 0.0 0.00154638098197 0% => OK
Determiners: 0.117021276596 0.128158765124 91% => OK
Modal_auxiliary: 0.0106382978723 0.0158828679856 67% => OK
WH_determiners: 0.0212765957447 0.0114777025283 185% => OK
Vocabulary words and sentences:
No of characters: 1571.0 1645.83664459 95% => OK
No of words: 262.0 271.125827815 97% => OK
Chars per words: 5.99618320611 6.08160592843 99% => OK
Fourth root words length: 4.02323427807 4.04852973271 99% => OK
words length more than 5 chars: 0.389312977099 0.374372842146 104% => OK
words length more than 6 chars: 0.267175572519 0.287516216867 93% => OK
words length more than 7 chars: 0.202290076336 0.187439937562 108% => OK
words length more than 8 chars: 0.110687022901 0.113142543107 98% => OK
Word Length SD: 2.67151852818 2.5805825403 104% => OK
Unique words: 133.0 145.348785872 92% => OK
Unique words percentage: 0.507633587786 0.539623497131 94% => More unique words wanted or less content wanted.
Word variations: 48.463422638 53.8517498576 90% => OK
How many sentences: 12.0 13.0529801325 92% => OK
Sentence length: 21.8333333333 21.7502111507 100% => OK
Sentence length SD: 43.6956011007 49.3711431718 89% => OK
Chars per sentence: 130.916666667 132.220823453 99% => OK
Words per sentence: 21.8333333333 21.7502111507 100% => OK
Discourse Markers: 0.833333333333 0.878197800319 95% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 1.0 3.39072847682 29% => OK
Readability: 48.5508905852 50.5018328374 96% => OK
Elegance: 1.59459459459 1.90840788429 84% => OK
Coherence and Cohesion:
Essay topic to essay body coherence: 0.572788239357 0.549887131256 104% => OK
Sentence sentence coherence: 0.210407268977 0.142949733639 147% => OK
Sentence sentence coherence SD: 0.106821564353 0.0787303798458 136% => OK
Sentence paragraph coherence: 0.656839104056 0.631733273073 104% => OK
Sentence paragraph coherence SD: 0.154406831618 0.139662658121 111% => OK
Sentence topic coherence: 0.274192895392 0.266732575781 103% => OK
Sentence topic coherence SD: 0.118564224131 0.103435571967 115% => OK
Paragraph paragraph coherence: 0.415403571455 0.414875509568 100% => OK
Paragraph paragraph coherence SD: 0.147755648731 0.0530846634433 278% => OK
Paragraph topic coherence: 0.415969328382 0.40443939384 103% => OK
Paragraph topic coherence SD: 0.0696083504687 0.0528353158467 132% => OK
Task Achievement:
Sentences with positive sentiment : 8.0 4.33554083885 185% => OK
Sentences with negative sentiment : 2.0 4.45695364238 45% => OK
Sentences with neutral sentiment: 2.0 4.26048565121 47% => OK
Positive topic words: 7.0 3.49668874172 200% => OK
Negative topic words: 2.0 3.62251655629 55% => OK
Neutral topic words: 2.0 3.1766004415 63% => OK
Total topic words: 11.0 10.2958057395 107% => OK
What are sentences with positive/Negative/neutral sentiment?
---------------------
Rates: 66.6666666667 out of 100
Scores by essay e-grader: 20.0 Out of 30
---------------------
Note: This is not the final score. The e-grader does NOT examine the meaning of words and ideas. VIP users will receive further evaluations by advanced module of e-grader and human graders.