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
Reil [10]
3 years ago
14

At a certain temperature, Kc = 0.0500 and ∆H = +39.0 kJ for the reaction below, 2 MgCl2(s) + O2(g) → 2MgO(s) + Cl2(g) Calculate

Kc for the reaction, MgO(s) + ½ Cl2(g) → MgCl2(s) + ½ O2(g) and indicate whether the value of Kc will be larger or smaller at a lower temperature.
Chemistry
1 answer:
Minchanka [31]3 years ago
6 0

Explanation:

Since, it is shown that the reaction has been reversed. Therefore, value of K_{c} will become \frac{1}{K_{c}}.

Hence, new K_{c'} = \frac{1}{K_{c}}

                                      = \frac{1}{0.0500}

                                      = 20

Also, the number of moles of each reactant has been halved. So, K_{c''} for the reaction MgO(s) + \frac{1}{2}Cl2(g) → MgCl_{2}(s) + \frac{1}{2} O2(g) will also get halved.

Therefore,     K_{c''}  = K_{c'} = (20)^{0.5}

                               = 4.47

As the value of \Delta H is given as +39.0 kJ. So, it means that the reaction is endothermic in nature. So, energy of reactants will be more than the products. Hence, according to Le Chatelier's principle reaction will move in the forward direction.

As a result, K_{c} will also increase with increase in temperature.

You might be interested in
What are neutral substances?
Valentin [98]

Answer:

Neutral substance is the one that neither exhibits acidic properties nor basic. Such a type of substance has equal no. of hydrogen and hydroxyl ions. Due to the neutrality state these substances do not show changes in the indicators.

8 0
3 years ago
Which type of bond is formed by two atoms that equally share one pair of electrons? (1 point) ionic covalent metallic un?
GenaCL600 [577]
It's B Covalent.Now I'll add more words since the thing says I need to write at least 20 characters.

 
4 0
3 years ago
Read 2 more answers
1. How many molecules of H,O are in 4.32 moles?
Korvikt [17]

Answer:

dont know

Explanation:

8 0
3 years ago
Which of the following is a chemical property?
ad-work [718]
The first one is D hope it helps!
6 0
3 years ago
Read 2 more answers
Please answer this skskskskskksmsk
Sveta_85 [38]

Answer:see attached photo for answer

Explanation:cell division occurs to produce new cells from preexisting ones. the new cells are called daughter cells.the old cells are called parent cells.cell division may be mitosis or meiosis. Mitosis occurs in a somatic cell and produce four daughter cell. Meiosis occurs in sex cells and produce two daughter cells. Cell division usually involves Prophase, metaphase, anaphase and telophase.

Cell division occurs to ensure the continous existence of life.

Mitosis involve producing daughter cells with the same number of chromosomes as the parent cells while meiosis involves producing daughter cells with Half number of chromosomes.

4 0
3 years ago
Other questions:
  • A similarity between the nervous system and the hormone-secreting system in humans is that they both?
    11·1 answer
  • Draw the curved arrow mechanism to show the conversion of hex-1-ene and CH3CH2OH in acidic solution into 2-ethoxyhexane. Follow
    13·1 answer
  • The temperature at which a liquid becomes a solid is the:
    12·2 answers
  • Please help I will reward brainly this is science
    13·1 answer
  • What kind of bonding is found in Fe2O3?​
    9·1 answer
  • If electricity cannot be destroyed or created then why do we got to pay for electricity?
    14·1 answer
  • Who Invented microscopes? (This one is for fun. I will be giving away 50 points to the first person!)
    6·1 answer
  • Consider the following reaction: CO(g)+2H2(g) <--> CH3OH(g).
    10·1 answer
  • Explain the bond between Mg2C12 and also what type of bond will it be ionic or covalent?
    6·1 answer
  • Which statement describes a physical property of steel? O A. Steel is formed from an alloy of iron and carbon. O B. Steel has a
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!