4. Find in the text the synonyms for the following words.
Word |
Synonym |
explain (v) |
elucidate |
velocity (n) |
|
staged (a) |
|
clash (n) |
|
researcher (n) |
|
turning (n) |
|
balance (n) |
|
radiate (v) |
|
5. What notions do these groups of key words describe?
Key words |
Notion |
the interpretation of the phenomena of chemistry in terms of the underlying principles of physics |
physical chemistry |
the study of transformations of energy |
|
the electromagnetic radiation absorbed, emitted, or scattered by samples |
|
the monitoring the rotations of molecules |
|
the target of investigation is commonly an isolated, individual molecule |
|
the heat generated or required by chemical reactions |
|
the rates of chemical reaction |
|
the studying vibrations of molecules |
|
6. Read the following text about thermodynamics and unscramble the letters in the brackets to find the correct word. Translate the text.
Thermodynamics
is the study of the relationship between h______(tahe)
and work. In other words, thermodynamics looks at how we can put
e__________(renyge)
into a system (whether it is a machine or a molecule) and make it do
work. Alternatively, we might be able to do some work on a system and
make it produce energy (like spinning the t
urbines
in a power station to produce e____________(trielectyci)).
In c___________(micehryts), we sometimes speak more broadly about "energetics" of reactions (rather than thermodynamics), because energy given off during a r_________(tirecano) may simply be lost to the surroundings without doing useful work. Nevertheless, the ideas are the same: energy can be added to a set of molecules in order to produce a reaction, or a reaction can occur between a set of molecules in order to r________(esreale) energy.
7. Noun, verb, adjective, adverb, participle or preposition? What are the underlined words in each sentence?
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