Which statement correctly describes an endothermic chemical reaction?
(1) The products have higher potential energy than the reactants,and the ΔH is negative.(2) The products have higher potential energy than the reactants, andthe ΔH is positive.(3) The products have lower potential energy than the reactants, andthe ΔH is negative.(4) The products have lower potential energy than the reactants, andthe ΔH is positive.

Question

03-06-2015
Chemistry

Answered

Which statement correctly describes an endothermic chemical reaction?
(1) The products have higher potential energy than the reactants,and the ΔH is negative.(2) The products have higher potential energy than the reactants, andthe ΔH is positive.(3) The products have lower potential energy than the reactants, andthe ΔH is negative.(4) The products have lower potential energy than the reactants, andthe ΔH is positive.

Answer :

Other Questions

Imagine that it is 1660 and you are one of the daimyo. Some dutch merchants have just arrived in your lands. Which of the following might be reasons why you sho

Select the three primary ways messages are communicated in the order of importance.a. Body language, spoken word, tonalityb. Tonality, body language, spoken wor

Why is giving undivided attention necessary for customer satisfaction?Why is it necessary to be dressed professionally when dealing with customers?

Find the amplitude and period of the function.[tex]\[ y=\frac{4}{3} \sin(2x) \][/tex]---Note: The \LaTeX\ tags have been corrected to ensure proper formatting.

which classification system do taxonomists mostly prefer? Explain any reason as to why do they prefer that system.

Estimate 5356.256 to the nearest tenths.

Read the excerpt from The Dark Game:"On January 16, 1917, in a clear attempt to convince the Mexican government to help Germany in the war, Arthur Zimmermann, t

Here are the data for our basketball example:[tex]\[ \begin{array}{|c|c|c|c|c|c|c|c|c|c|c|} \hline \text{Player} & 1 & 2 & 3 & 4 & 5 & 6

Which statement best describes the function below?[tex]\[ f(x) = 2x^3 + 2x^2 - x \][/tex]A. It is a one-to-one function. B. It is not a function. C. It is a m

If a producer is imposing an external cost on society, the best response would be:a. Abandon the marketb. Increase the productionc. Internalize the externalityd

The radius of the ice cream scoop below is 1.35 in and the cone height is 1.89 in. What is the volume of the ice cream cone (including the ice cream top)? roun

Denise has to create an appetizer for an upcoming cocktail hour for vegetarians. She is using onion jam spread, some caramelized nuts, and soft cheese. A base w

1. Basahin at unawain ang kabanata 3 at 4 ng nobelang El Filibusterismo. Pagkatapos ay gawin sa isang buong papel ang mga ss. a. Mga tauhan ng kabanata 3 at 4 a

compare the advantages and disadvantage of this technique used by Grotowski

Two particles X and y starting from rest cover the same distance. The acceleration of x is twice that of Y. The ratio of the time TAKEN by X to that taken by Y

Bonjour, Je suis en première spé Maths. J'ai un dm pour lundi sur les produit scalaires mais je n'ai rien compris. SVP j'ai besoin d'aide.

If total assets equal $500 million, current liabilities equal $100 million, long-term liabilities equal $200 million and retained earnings equal $50 million the

Argumentative essay about importance of atmosphere

Specific area of study in the significance of the different slope elements for human activities

Find the perimeter of the shaded area

Dejanras Dejanras · Answer 1 · 2019-01-02T03:13:46-05:00

Answer is: (2) The products have higher potential energy than the reactants, and the ΔH is positive.

There are two types of reaction:

1) endothermic reaction (chemical reaction that absorbs more energy than it releases, ΔH>0).

2) exothermic reaction (chemical reaction that releases more energy than it absorbs).

For example, the breakdown of ozone is an endothermic process. Ozone has lower energy than molecular oxygen (O₂) and oxygen atom, so ozone need energy to break bond between oxygen atoms.

RomeliaThurston RomeliaThurston · Answer 2 · 2019-01-02T03:17:49-05:00

Answer: The correct answer is Option 2.

Explanation: There are 2 types of reactions classified under the change of energy in a system:

1. Endothermic reactions: These are defined as the chemical reactions in which energy is absorbed in a system. The potential energy of the products is more than the potential energy of the reactants. As energy is absorbed in the system, so [tex]\Delta H=+ve[/tex]

2. Exothermic reactions: These are defined as the chemical reactions in which energy is released by the system. The potential energy of the products is less than the potential energy of the reactants. As energy is released by the system, so [tex]\Delta H=-ve[/tex]

From the given information above, we can conclude that in endothermic chemical reaction, the products have higher potential energy than the reactants, and ΔH is positive. Hence, the correct answer is option 2.