A vessel of volume 22.4l contains 2.0 mol
hydrogen and 1.0 mol nitrogen at 273.15k.
calculate (a) the mole fractions of each
component, (b) their partial pressures.
Answer:
A noun clause that is functioning as the subject of the sentence Option C: 'Whoever travels the Pelly River' follows in the footsteps of the explorer Robert Campbell.
Explanation:
A sentence can have independent clauses and dependent clauses. Dependent clause is the noun clause of the sentence which can act as subject, object or complement of verb in a sentence. Noun clause is the dependent part of the sentence which functions as a noun. It is usually introduced in a sentence by the conjunction that. It can also be introduced by other conjunctions like if, whether, whoever, who, where, when, what etc.
Option B and D noun clauses are acting as objects of the sentence. In Option D "Whoever travels the Pelly River" emphasizes the subject of the sentence. If we ask the question "Who follows in the footsteps", Answer is 'Whoever travels the Pelly River'. So, it is acting as the subject of the verb 'follows' in the sentence.
A system means a group of things that are together
