Based on the reaction shown, which statement is true? N_2 + O_2 rightarrow 2 NO

Question

Based on the reaction shown, which statement is true? N_2 + O_2 rightarrow 2 NO delta H = 43.2 kcal A) 43.2 kcal are consumed when 1.00 g of H_2 reacts. B) 43.2 kcal are consumed when 1.00 g of O_2 reacts. C) 43.2 kcal are consumed when 1.00 mole of O_2 reacts. D) 43.2 kcal are produced when 1.00 mole of NO is produced. In the process of dissolving sugar in water, the entropy increases. This means that the sign of delta S is ______, and that the randomness of the system ______. A) undetermined; increases B) positive; decreases C) positive; increases D) negative; decreases Which factors would increase the rate of a chemical reaction? I. Increasing the temperature II. Removing products as they are formed III. Adding a catalyst A) I and II B) II and III C) I, II, and III D) I only E) II only Which of the following statements can be assumed to be true about how reactions occur? A) Catalysts must be present in the reaction. B) Energy must be absorbed as the reaction proceeds. C) Reactant particles must collide with each other. D) More than one statement can be true.

Explanation / Answer

1)

Since sign of H is positive, energy is consumed

Also the coefficient is always taken as mol

So, Answer: C

2)

what you have done is correct

Answer: C

I am allowed to answer only 1 question at a time

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