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
lidiya [134]
2 years ago
8

The activation energy for the reaction no2(g)+co(g)⟶no(g)+co2(g) is ea = 375 kj/mol and the change in enthalpy for the reaction

is δh = -225 kj/mol . what is the activation energy for the reverse reaction?
Chemistry
1 answer:
Georgia [21]2 years ago
3 0

Answer is: 600 kJ/mol.<span>
Chemical reaction: </span>NO₂(g) + CO(g) ⟶ NO(g) + CO₂(g).

<span> Ea(forward) = 375 kJ/mol.
Ea(reverse) = ? kJ/mol.
ΔH(reaction) = -225 kJ/mol; this is exothermic reaction.
The enthalpy change of reaction is the change in the energy of the reactants to the products.
ΔH(reaction) = Ea(forward) - Ea(reverse).
-225 kJ/mol = 375 kJ/mol - </span>Ea(reverse).
Ea(reverse)<span> = 600 kJ/mol.</span>

You might be interested in
What element is being oxidized<br><br> Fe2O3 + 3CO -&gt; 2FE +3C02
Vinvika [58]
Fe because oxidation mean loss of oxygen and Fe lose the oxygen so Fe is oxidised
7 0
2 years ago
What is one reason why rock layers are not horizontal?
lawyer [7]
B)a force pushed the rock layers after they were formed
6 0
3 years ago
Read 2 more answers
A metal X from two oxide A and B .3.oogm of A and B contain 0.72 and 1.16g of oxygen respectively.calculate the maases of metal
devlian [24]

Answer:

Explanation:

Firstly, we have to determine the mass of metal X. We can do that by interpreting the first and second statement mathematically.

Metal X can form 2 oxides (A and B).

A + B = 3g

The mass of oxygen in A is 0.72g and the mass of oxygen in B is 1.16g.

The mass of metal X in the two oxides will be the same because it's the same metal.

Thus, we represent the mass of the metal in the two oxides as 2X.

2X + 0.72 + 1.16 = 3

2X + 1.88 = 3

2X = 3 - 1.88

2X = 1.12

X = 0.56

<u>Thus, 0.56 g of the metal combines with 0.72g of oxygen in A and 1.16 g of oxygen in B.</u>

Thus, mass of metal (X) in 1g of oxygen in A is

0.56g ⇒ 0.72g

X ⇒ 1

X = 1 × 0.56/0.72

X = 0.78 g

Hence, 0.78g of the metal will combine with 1g of oxygen for A

Also, mass of metal (X) in 1g of oxygen in B is

0.56g ⇒ 1.16g

X ⇒ 1g

X = 1×0.56/1.16

X = 0.48 g

Thus, 0.48g of the metal will combine with 1g of oxygen for B

6 0
2 years ago
What are the 3 best solutions to reducing or stopping the effects of climate change?
postnew [5]

Answer:

1. Stop Cutting down Trees

2. Control Population

3. Less use of Fossil Fuels

Explanation:

your welcome :)

4 0
2 years ago
Read 2 more answers
The solubility of gases in liquids increases with increasing pressure. <br> a. True <br> b. False
amid [387]
Hello There!

The solubility of gases in liquids increases with increasing pressure.

Answer: True

Hope This Helps You!
Good Luck :) 

- Hannah ❤
6 0
3 years ago
Read 2 more answers
Other questions:
  • iron reacts with sulfur to form iron sulfide. If 60 grams of iron reacts with sulfur to produce 90 grams of iron sulfide how muc
    6·2 answers
  • Which set of data would be best illustrated with a graph bar?
    15·1 answer
  • One of these element behaves partly as the alkaline metal as well as a halogen element
    8·1 answer
  • 7. How many significant figures are in the following numbers?
    9·1 answer
  • if 0.50 L of a 5.00 M stock solution of HCL is diluted to make 2.0 L of solution, how much HCL, in grams, is in the solution?
    15·1 answer
  • To convert from Mass A to moles of B in stoichiometry problems, the following steps are followed:
    14·1 answer
  • Please Help -<br> Complete the table
    9·1 answer
  • A pile of marbles weigh 394.80 g. 10 marbles weigh<br>37.60 g. How many marbles are in the pile?​
    10·1 answer
  • Identify the reaction that would possibly make a good
    13·1 answer
  • Calculate the number of atoms in 3.21 mole of Mg?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!