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
Greeley [361]
3 years ago
9

What is the value of the equilibrium constant, K, for a reaction for which ∆G° is equal to –5.20 kJ at 50°C?

Chemistry
1 answer:
frutty [35]3 years ago
5 0

Answer:

6.93

Explanation:

Step 1: Given data

  • Standard Gibbs free energy (∆G°): -5.20 kJ
  • Temperature (T): 50°C
  • Equilibrium constant (K): ?

Step 2: Convert the temperature to the Kelvin scale

We will use the following expression.

K = °C + 273.15

K = 50°C + 273.15

K = 323 K

Step 3: Calculate K

We will use the following expression.

∆G° = -R × T × ln K

-5.20 × 10³ J = -(8.314 J/mol.K) × 323 K × ln K

K = 6.93

You might be interested in
Greg checks his watch one day at noon when the Sun is directly overhead. He decides to check his watch when the Sun is directly
agasfer [191]
24 because the sun has to be over his head again...?
4 0
3 years ago
What are the reactants in a neutralization reaction?
castortr0y [4]

answer an element and a compound

8 0
3 years ago
What is the balanced chemical equation for the combustion of sulphur
nikitadnepr [17]

Answer:

S+O2⇒SO2

Explanation:

3 0
2 years ago
Read 2 more answers
What does the atomic numbrr represent on the periodic table?​
lesya692 [45]

Answer:

Explanation:

The atomic number tell us the number of protons and neutrons in the nucleus of an atom. in other words ,each element has a unique number that identifies how many protons are in one atom of that element example, all hydrogen atoms, and only hydrogen atoms, contain one proton and have an atomic number of 1.

4 0
3 years ago
In an experiment, a 0.5297 g sample of diphenylacetylene (C14H10) is burned completely in a bomb calorimeter. The calorimeter is
V125BC [204]

Answer:

the Molar heat of  Combustion  of  diphenylacetylene (C_{14}H_{10})  = -6.931 *10^3 \ kJ/mol

Explanation:

Given that:

mass of diphenylacetylene (C_{14}H_{10}) = 0.5297 g

Molar Mass of diphenylacetylene (C_{14}H_{10}) = 178.21 g/mol

Then number of moles of diphenylacetylene (C_{14}H_{10})  = \frac{mass}{molar \ mass}

= \frac{0.5297  \ g }{178.24 \  g/mol}

= 0.002972 mol

By applying the law of calorimeter;

Heat liberated by 0.002972 mole of diphenylacetylene (C_{14}H_{10})  = Heat absorbed by H_2O + Heat absorbed  by the calorimeter

Heat liberated  by 0.002972 mole of diphenylacetylene (C_{14}H_{10})  =  msΔT + cΔT

= 1369 g  × 4.184 J g⁻¹°C⁻¹ × (26.05 - 22.95)°C + 916.9 J/°C (26.05 - 22.95)°C

= 17756.48 J + 2842.39 J

= 20598.87 J

Heat liberated by 0.002972 mole of diphenylacetylene (C_{14}H_{10})  = 20598.87 J

Heat liberated by 1 mole of  diphenylacetylene (C_{14}H_{10}) will be = \frac{20598.87 \ J}{0.002972 \ mol}

= 6930979.139 J/mol

= 6930.98 kJ/mol

Since heat is liberated ; Then, the Molar heat of  Combustion  of  diphenylacetylene (C_{14}H_{10})  = -6.931 *10^3 \ kJ/mol

3 0
3 years ago
Read 2 more answers
Other questions:
  • Calculate the volume of this irregular solid to the nearest cubic centimeter.
    15·2 answers
  • The rate of chemical weathering increases with this?
    6·2 answers
  • How does the carbon chain length affect the polarity of an alcohol? What effect does this have on the solubility of the alcohol
    5·1 answer
  • Explain why, even though a collision may have energy in excess of the activation energy, what reaction may not occur ?
    8·1 answer
  • Under which conditions of temperature and pressure does oxygen gas behave least like an ideal gas?
    15·2 answers
  • Which type of radiation particle cannot be completely blocked by lead shielding ​
    15·1 answer
  • Which best describes the modern periodic table?
    10·1 answer
  • Temperature, density, and pressure ______________ (increases, decreases) as depth ____________ (increases, decreases).
    10·2 answers
  • What is te name of P2CL7
    14·1 answer
  • Which of these elements could be formed at the anode when a molten salt is electrolysed?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!