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
Lubov Fominskaja [6]
3 years ago
11

The equilibrium-constant expression depends on the ________ of the reaction. Group of answer choices temperature stoichiometry m

echanism the quantities of reactants and products initially present stoichiometry and mechanism
Chemistry
1 answer:
slavikrds [6]3 years ago
7 0

Answer:

temperature and mechanism

Explanation:

Arrhenius equation gives us the idea about the factors affecting equilibrium constant.It is given as:

<h3>k=Ae^{\frac{-E_{a} }{RT} }</h3>

where k=equilibrium constant

          A=pre-exponential factor

          E_{a}=Activation energy

          T=temperature

          R=Universal gas constant

<h3>It is clear that k depends only on temperature and activation energy.</h3>

Activation energy of a reaction is different for different mechanisms or pathways.Hence k depends on both temperature and mechanism.

You might be interested in
What is the vapor pressure in equilibrium with when the substance has reached its boiling point
S_A_V [24]

Answer:

The boiling point of a liquid is the temperature at which its vapor pressure is equal to the pressure of the gas above it.The normal boiling point of a liquid is the temperature at which its vapor pressure is equal to one atmosphere (760 torr). Microscopic view inside a bubble in boiling water.

Explanation:

8 0
3 years ago
Which compounds are lewis bases? select all that apply. h―c≡c―h h− nh3 ch3ch2ch3?
Alisiya [41]

The Lewis bases are those which can donate electron pair to an acceptor. These electrons can be a pair of electron that is a lone pair, a negative charge or electrons in a \pi-bond.

  • In H-C\equiv C-H, the presence of \pi-bond make it a Lewis base.
  • In H^{-}, the presence of negative charge makes it a Lewis base.
  • In NH_3, the presence of lone pair on nitrogen makes it a Lewis base.
  • In CH_3CH_2CH_3, there is no lone pair, no \pi-bond, no negative charge so it is not a Lewis base.

Hence, H-C\equiv C-H, H^{-}, and NH_3 are Lewis bases.

8 0
3 years ago
Which is best illustrated by Watson and Crick's ball-and-stick model of DNA? the importance of sticking to established methods o
77julia77 [94]

Answer:

B. the role of creativity in scientific discovery

Explanation:

Watson and Crick's ball-and-stick model of DNA demonstrates the importance of creativity in science. Creativity involves having a questioning mind that is always searching for answers and which employs logical reasoning to arrive at these answers. After Rosalind Franklin obtained an X-ray diffraction of DNA, Scientists Watson and Crick expanded on this knowledge by creatively organizing ball and sticks in a manner that represenseted the structure of the DNA.  

This simple creative act led to more discoveries about the DNA including the facts that their was a pairing wherein Adenine paired with Thymine and Cytosine paired with Guanine. They also found that the DNA structure could be unzipped and that copying was also possible. They used the simple things around them to arrive at this conclusion. This is an example of the importance of creativity in science.

8 0
3 years ago
At 298 K the standard enthalpy of combustion of sucrose is -5645 kJ/mol and the standard reaction Gibbs energy is -5798 kJ/mol.
natka813 [3]

Explanation:

The given data is as follows.

             T = 298 K,          \Delta H^{o} = -5645 kJ/mol

          \Delta G^{o} = -5798 kJ/mol

Relation between \Delta H and \Delta G are as follows.

          \Delta G^{o} = \Delta H^{o} - T \Delta S^{o}    

             -5798 kJ/mol = -5645 kJ/mol - 298 \times \Delta S^{o}

                       -153 kJ/mol = -298 \times \Delta S^{o}

                    \Delta S^{o} = 0.513 kJ/mol K

Now, temperature is 37^{o}C = (37 + 273) K = 310 K

Since,        \Delta G = \Delta H^{o} - T \Delta S^{o}

                            = -5645 kJ/mol - 310 K \times 0.513 kJ/mol K

                            = (-5645 kJ/mol - 159.03 kJ/mol)

                            = -5804.03 kJ/mol

As, change in Gibb's free energy = maximum non-expansion work

            \Delta G = \Delta G_{310 K} - \Delta G_{298 K}

                           = -5804.03 kJ/mol - (-5798 kJ/mol)

                           = -6.03 kJ/mol

Therefore, we can conclude that the additional non-expansion work is -6.03 kJ/mol.

5 0
3 years ago
How many feet are in 6.75 miles? <br><br> (6.75x1) divided by 5280 =
disa [49]

Answer:

0.00127840909

Explanation:

yehehdhdalakdjhd

7 0
3 years ago
Other questions:
  • Mr. Soto was trying to explain how electrons move around the nucleus of an atom in circular orbits. Which analogy BEST represent
    6·2 answers
  • A liquid mixture containing 0.50 mole fraction benzene - toluene is contained in a storage vessel at 25°C and 1 atm. The vessel
    5·1 answer
  • What is the temperature of the mixture formed of 100 g of water with temperature 15c and 250g of water with temperature 50c in a
    7·1 answer
  • g compute the specific heat capacity at constant volume of nitrogen gas. the molar mass of N2 is 29.0 You warm 1.8 kg ov water a
    12·1 answer
  • What are the characteristics of a proton
    12·2 answers
  • The compounds below are to be separated by extraction. A student dissolves the compounds in either and then transfers the soluti
    8·1 answer
  • A sample of an ideal gas at 1.00 atm and a volume of 1.50 L was placed in a weighted balloon and dropped into the ocean. As the
    14·1 answer
  • What are 7 elements from the periodic table that are named after objects in outer space?
    15·1 answer
  • Which represents the empirical formula for A3Bg?
    8·1 answer
  • How would you solve the following geometry problem?: ∆PQR, find the measure of ∡P. In Triangle PQR where angle Q is a right angl
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!