1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Marina86 [1]
3 years ago
13

If the products of a certain reaction are favored (i.e., the ΔG value of the reaction is negative), one would expect a significa

nt amount of product to form when the reactants are combined. Which of the choices could explain why such a reaction might produce very little product?
A. low activation energy, Ea
B. negative change in entropy, ΔS
C. high activation energy, Ea
D. positive change in enthalpy, ΔH
Chemistry
2 answers:
MA_775_DIABLO [31]3 years ago
6 0

Answer:

C. High activation Energy, Ea

Explanation:

The activation energy of a chemical reaction affects the rate at which the reaction proceeds regardless of its  ΔG value. The higher the activation energy, the slower the reaction proceeds.

This occurs primarily due to the fact that the molecules of the reacting substances have to attain an energy value which is higher than the activation energy before a reaction starts. This is so even for reactions that are termed spontaneous. Molecules can only complete the reaction once they have reached the top of the activation energy barrier.

If the activation energy is high, only a few molecules will have enough energy to reach this barrier, thus slowing down the chemical reaction.

This makes option C the correct choice.

Over [174]3 years ago
4 0

Answer:

positive H and negative S

Explanation:

For a reaction to be spontaneous, the absolute best combination is a negative Delta H and a positive Delta S. When they are both positive, the reaction is only spontaneous at higher temperatures. When they are both negative, the reaction is only spontaneous at lower temperatures. and again if a catalyst is added to the reaction, the activation energy is lowered because a lower-energy transition state is formed. The catalyst does not affect the energy of the reactants or products (and thus does not affect ΔG).

So from these discussions

Ea does not affect G value at all (whether +Ea or -Ea).

And for product to be formed the reaction should be spontaneous, where H is negative and S positive else the reaction will yield low product.

You might be interested in
In which type of mirror do you see the most realistic virtual image
ICE Princess25 [194]

Phan

convex

concave

duplex

8 0
2 years ago
___________ is the scale used to describe how acidic or basic a solution is. This affects the enzymes within living systems.
nydimaria [60]

Answer:

pH scale

Explanation:

pH scale -

In the field of chemistry , the accurate and exact value of acidity or basicity in a particular solution is calculated with the help of a pH scale .

The scale has reading ranging from 1 to 14 ,

where ,

  • If the pH value less than 7 indicates the solution to be acidic in nature ,
  • If the pH value is exactly equal to 7 , the solution is neutral in nature ,

and ,

  • If the pH value more than 7 indicates the solution to be basic in nature ,

Hence , from the given statement of the question ,

The correct answer is pH scale .

3 0
3 years ago
Which of these is most similar to the Aztec political system?
Mnenie [13.5K]
B the app and then it was just a was the last time you got it to a friend or we
5 0
3 years ago
The table shows the charge on three unknown subatomic particles.
brilliants [131]

Answer:

B. only particle Z

Explanation:

In the case of subatomic particles, those positive and neutral are located in the nucleus, and those with a negative charge on the outside.

8 0
3 years ago
Read 2 more answers
Hydrogen is an element with two naturally occurring isotopes: 2 H and 3 H. This means that 2 H, which has a mass number of 2, ha
Dmitry_Shevchenko [17]

Answer:

TRUE.

Explanation:

Mass Number is the sum of protons and neutrons present in the nucleus of an atom. Isotopy is a phenonmenon that occurs when atoms of same elements have different mass number (Number of neutrons).

2H isotope has 1 proton and 1 neutron.

3H isotope has 1 proton and 2 neutrons.

This meeans 2H isotope has fewer neutrons when compared to the 3H isotope. The correct option is TRUE.

8 0
3 years ago
Other questions:
  • Is a bar of nature valley consider a compound element solution or a heterogeneous mixture?
    8·1 answer
  • Temperature measures _____.
    14·2 answers
  • WHO WAS Tannatt William Edgeworth David
    5·1 answer
  • How can you tell a meteor from a comet in the night sky
    15·1 answer
  • How many atoms are in 15 moles of cadmium?
    12·2 answers
  • The dorsal side of the leopard frog
    6·1 answer
  • Do you BELIVE this is how you make Slime?
    9·1 answer
  • If the density of carbon tetrachloride is 0.893 g/mL, and a sample has a volume of 9.29 mL, what is the mass?
    11·1 answer
  • HELPPPPPPPP ILLL APPLEPAY YOU 20 dollars
    14·1 answer
  • Dentify the reagents used to carry out the chlorination of benzene. a. cl2/ccl4 b. cl2/fecl3 c. cl2/nacl d. both b and c e. a, b
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!