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
Aneli [31]
3 years ago
12

Consider these changes.

Chemistry
1 answer:
Ede4ka [16]3 years ago
3 0

Answer:

(a) The system does work on the surroundings.

(b) The surroundings do work on the system.

(c) The system does work on the surroundings.

(d) No work is done.

Explanation:

The work (W) done in a chemical reaction can be calculated using the following expression:

W = -R.T.Δn(g)

where,

R is the ideal gas constant

T is the absolute temperature

Δn(g) is the difference between the gaseous moles of products and the gaseous moles of reactants

R and T are always positive.

  • If Δn(g) > 0, W < 0, which means that the system does work on the surroundings.
  • If Δn(g) < 0, W > 0, which means that the surroundings do work on the system.
  • If Δn(g) = 0, W = 0, which means that no work is done.

<em>(a) Hg(l) ⇒ Hg(g)</em>

Δn(g) = 1 - 0 = 1. W < 0. The system does work on the surroundings.

<em>(b) 3 O₂(g) ⇒ 2 O₃(g) </em>

Δn(g) = 2 - 3 = -1. W > 0. The surroundings do work on the system.

<em>(c) CuSO₄.5H₂O(s) ⇒ CuSO₄(s) + 5H₅O(g) </em>

Δn(g) = 5 - 0 = 5. W < 0. The system does work on the surroundings.

<em>(d) H₂(g) + F₂(g) ⇒ 2 HF(g)</em>

Δn(g) = 2 - 2 = 0. W = 0. No work is done.

You might be interested in
1) Calculate the molar mass of Tryptophan.
mestny [16]

Answer:

204.23 g/mol

Explanation:

6 0
3 years ago
What is science? Why do you think science is important?
ryzh [129]

Answer:

Science is the study of the physical or material world. Science is important because it can answer questions about new ideas and can advance technologies

Explanation:

3 0
3 years ago
At chemical equilibrium the amount of blank because
Norma-Jean [14]

Answer:

In a chemical reaction, chemical equilibrium is the state in which the forward reaction rate and the reverse reaction rate are equal. The result of this equilibrium is that the concentrations of the reactants and the products do not change.

Explanation:

5 0
3 years ago
Lysol Power Toilet Bowl Cleaner contains 9.5% hydrochloric acid. Explain why this would be necessary to clean toilet bowls that
Romashka [77]

Answer:

The acid will absolutely remove the hard water deposits that are trapping the stains. The longer it soaks, the less you have to scrub. It works for hard water stains, limescale, and rust!

Explanation:

hope this helped you out.

8 0
3 years ago
PLEASE HELP!!!!!!!!!!! WILL AWARD 50 POINTS!!!!!!!!!111
Vinil7 [7]

I am pretty sure the answer is . But I might be wrong.

3 0
3 years ago
Read 2 more answers
Other questions:
  • During the first half of the 20th century, the theory of plate tectonics was developed. Evidence supporting this theory included
    5·1 answer
  • How Many atoms are in 1 mole of tantalum, Germanium, Rhodium, Nihonium?
    6·1 answer
  • Which of the following answer choices best describes J. J. Thomson's plum-pudding model?An atom is surrounded by a firm outer sh
    15·1 answer
  • If atoms are made up smaller parts such as electrons, why are atoms considered the basic unit of matter
    5·1 answer
  • A stack of 10 pennies weighing 26.55 grams is placed in a graduated cylinder containing water. The initial volume of water is 50
    14·1 answer
  • An infant ibuprofen suspension contains 100 mg/5.0mL suspension. The recommended dose is 10 mg/kg body weight.How many millilite
    9·1 answer
  • When the equation 
    8·1 answer
  • Which substance is a type of biomolecule that can be used for energy storage and insulation? O A. Nucleic acid O B. Carbon dioxi
    15·2 answers
  • 3- There are 8<br> basic elements of<br> life. True or false?
    6·1 answer
  • The two major classes of telescopes are the _____ and the _____ telescope.<br><br> Pls help ASAP!!!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!