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
Irina18 [472]
3 years ago
5

For the gaseous reaction of carbon monoxide and chlorine to form phosgene (COCL2)

Chemistry
1 answer:
Natasha_Volkova [10]3 years ago
6 0

This is an incomplete question, here is a complete question.

For the gaseous reaction of carbon monoxide and chlorine to form phosgene (COCl₂)

Perform the following calculations:

A) Calculate ΔS at 298 K (ΔH= -220 kJ/mol and ΔG= -206 kJ/mol

B) Assuming that ΔS and ΔH change little with temperature, calculate ΔG at 450 K.

Answer :

(a) The value of ΔS at 298 K is, -0.0469 kJ/mol.K

(b) The value of ΔG at 450 K is, -199 kJ/mol

Explanation :

(a) According to Gibb's equation:

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

\Delta G = Gibbs free energy = -206 kJ/mol

\Delta H = enthalpy change  = -220 kJ/mol

\Delta S = entropy change = ?

T = temperature in Kelvin = 298 K

Now put all the given values in the above formula, we get:

-206kJ/mol=-220kJ/mol-298K\times \Delta S

\Delta S=-0.0469kJ/mol.K

Thus, the value of ΔS at 298 K is, -0.0469 kJ/mol.K

(b) According to Gibb's equation:

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

\Delta G = Gibbs free energy = ?

\Delta H = enthalpy change  = -220 kJ/mol

\Delta S = entropy change = -0.0469 kJ/mol.K

T = temperature in Kelvin = 450 K

Now put all the given values in the above formula, we get:

\Delta G=-220kJ/mol-450K\times -0.0469 kJ/mol.K

\Delta G=-198.895kJ/mol\approx -199kJ/mol

Thus, the value of ΔG at 450 K is, -199 kJ/mol

You might be interested in
Velocity is a vector quantity.Why?​
Alika [10]

Answer:

Has size and magnitude whereas a scalar quantity has only size

3 0
3 years ago
WHATS THE DIFFERENCE BETWEEN Fe AND FE2+
Grace [21]

Answer:

Fe is just the shortened version of Iron whereas Fe2+ is a positive ion,cation to be more specific

4 0
3 years ago
Which surface ocean currents has the warmest water
NNADVOKAT [17]
<span>the Brazil Current has the warmest water</span>
4 0
3 years ago
Read 2 more answers
Question 7 (1 point)<br> Classify as a compound or element?<br> (NaCl<br> Blank 1:
IgorLugansk [536]

Answer:

That is a compound. If it was an element it would either just be Na or Cl.

5 0
3 years ago
Read 2 more answers
Using the diagram to answer the question.
Kay [80]
B is the answer. It is the steepest



7 0
3 years ago
Other questions:
  • Given the chemical equation: n2 + 3 h2 → 2 nh3. On a molecular level, what do the coefficients mean? 1 atom of nitrogen reacts w
    7·1 answer
  • You have 1.2 L of air in a balloon 175 K. what is the new volume of the balloon when it is heated to 245 K
    13·1 answer
  • Phosphorus has an atomic mass of 31 and an atomic number of 15, so the number of neutrons must be _______________.
    11·1 answer
  • Maria poured 25 grams of water into a beaker. She stirred in 5 grams of salt. The salt dissolved. What is the total mass of Mari
    8·2 answers
  • 2. A reaction vessel is charged with hydrogen iodide, which partially decomposes to molecular hydrogen and iodine:2HI (g) H2(g)
    9·1 answer
  • In experiments, variation is not present.<br> O True<br> O False
    7·1 answer
  • How many atoms of nitrogen and oxygen are present in a molecule of dinitrogen pentoxide?
    8·2 answers
  • What is the reducing agent in the reaction below? <br><br> CrO3 + 2Al Cr + Al2O3
    10·2 answers
  • How many atoms are in a solid piece of iron that has a mass of 24.0g?
    11·1 answer
  • What is the enthalpy of the overall chemical reaction ch4(g)+4cl2(g)- ccl4(g)+4hcl(g)?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!