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
Ann [662]
3 years ago
8

What describes the change in Gibbs free energy (∆G) of a spontaneous reaction?

Chemistry
1 answer:
alexandr1967 [171]3 years ago
3 0

<u>Answer:</u> The correct answer is Option A.

<u>Explanation:</u>

Gibbs Free energy is defined as amount of useful work that can be done in the system. It is equal to the enthalpy of the reaction minus the product of entropy of the reaction and absolute temperature.

Mathematically,

\Delta G=\Delta H-T\Delta S

Where,

\Delta G = Gibbs free energy

\Delta H = Enthalpy of the reaction

\Delta S = Entropy of the reaction

T = Absolute temperature

Sign Convention for Gibbs Free energy:

If \Delta G, it is considered as a Spontaneous reaction.

If \Delta G>0, it is considered as a Non-Spontaneous reaction.

If \Delta G=0, reaction is in equilibrium.

Hence, the correct answer is Option A.

You might be interested in
A new engine is being designed that will carry 5.430 x 102 kilograms of methane, CH4, on board. How many liters of gaseous oxyge
algol [13]

Answer:

yeet

Explanation:

7 0
2 years ago
A sodium hydroxide solution is made by mixing 8.70 g NaOH with 100 g of water. The resulting solution has a density of 1.087 g/m
Ahat [919]

Answer:

Mass fraction = 0.08004

Mole fraction = 0.0377

Explanation:

Given, Mass of NaOH = 8.70 g

Mass of solution = 8.70 + 100 g = 108.70 g

Mass\ fraction\ of\ NaOH=\frac {8.70}{108.70} = 0.08004

Molar mass of NaOH = 39.997 g/mol

The formula for the calculation of moles is shown below:

moles = \frac{Mass\ taken}{Molar\ mass}

Thus,

Moles= \frac{8.70\ g}{39.997\ g/mol}

Moles\ of\ NaOH= 0.2175\ mol

Given, Mass of water = 100 g

Molar mass of water = 18.0153 g/mol

The formula for the calculation of moles is shown below:

moles = \frac{Mass\ taken}{Molar\ mass}

Thus,

Moles= \frac{100\ g}{18.0153\ g/mol}

Moles\ of\ water= 5.5508\ mol

So, according to definition of mole fraction:

Mole\ fraction\ of\ NaOH=\frac {n_{NaOH}}{n_{NaOH}+n_{water}}

Mole\ fraction\ of\ NaOH=\frac {0.2175}{0.2175+5.5508}=0.0377

3 0
2 years ago
Which is composed of alkynes?
telo118 [61]
The correct answer is letter (A) Acetylene. Acetylene is the most simplest form of alkyne and at the same time a hydrocarbon. It is unsaturated because of the presence of only two carbon atoms that are bonded together in a triple bond. I<span>n its pure, it is unstable and thus, it is usually held and handled as a solution.</span>
4 0
3 years ago
Read 2 more answers
How is chemistry apart of daily routine
Alex_Xolod [135]
Chemical<span> reactions takes place in plants and animals, this result in the formation of substances in some plants and animals that can be used to treat illness. </span>Chemistry<span>is </span>important<span> to everyday </span>life<span>, because it provides medicine. The food we consume each day comes directly from </span>chemical<span> processes.</span>
3 0
3 years ago
How many grams of calcium chloride are dissolved in 5.65 liters of a 0.11 m solution of calcium choride?
Julli [10]
C = 0.11 mol
V = 5.65 L
n = ???

n = C*V
n = 0.11 * 5.65
n = 0.622 mols

1 mol of CaCl2 = 40 + 2*35.5 = 111 grams
0.622 mol = x

x = 111 * 0.622
x = 69.0 grams CaCl2
4 0
3 years ago
Other questions:
  • Matt's cube, after 5 trials, had an average density of 7.40 g/cm3 . His group's cube was made of
    11·2 answers
  • "according to the modern theory of the atom, where may an atom’s electrons be found?"
    11·1 answer
  • PLS HELPPP I NEED ANSWERS QUICK !! WILL GIVE U BRAINLIEST
    15·1 answer
  • Count the number of molecules in the diagram of water formation given in the lesson to complete the following reaction.
    15·2 answers
  • 1. If ice is heated at a constant pressure of 0.00512 atm, it will______ . 2. If ice is heated at a constant pressure of 1 atm,
    10·1 answer
  • Which burns faster, a large log or the same log cut into small sticks of wood?
    12·1 answer
  • A 3.60−g sample of a salt dissolves in 7.70 g of water to give a saturated solution at 21°C. What is the solubility (in g salt/1
    12·1 answer
  • Write a balanced half-reaction for the reduction of dichromate ion cr2o−27 to chromium ion cr 3 in basic aqueous solution. be su
    6·2 answers
  • which statement is true about the reaction shown by this chemical equation HCl + NaOH ------&gt; NaCl + H2O
    10·2 answers
  • Does drinking water undergo a separation process called straining?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!