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
elena55 [62]
3 years ago
5

In a heat engine, 500 J of heat enters the system, and the piston does 300 J of work. What is the final internal (thermal) energ

y of the system if the initial energy is 1500 J?
200 J
800 J
1300 J
1700 J
Chemistry
1 answer:
mylen [45]3 years ago
8 0

Answer:

200J

Explanation:

This is because 500J - 300J = 200J

I hope this helps!!!

You might be interested in
Question 8 of 8> 0 Attempt 2 A chemist needs to determine the concentration of a sulfuric acid solution by titration with a s
Nesterboy [21]

Answer:

12.29 M

Explanation:

  • The reaction that takes place is:

H₂SO₄ + 2NaOH → 2Na⁺ + SO₄⁻² + 2H₂O

  • Now let's calculate the <u>moles of H₂SO₄ that were titrated</u>:

0.1284 M * 0.1915L*\frac{1molAcid}{2molNaOH} = 0.01229 mol H₂SO₄.

  • Thus, the <u>concentration of the diluted solution is</u>:

0.01229 mol H₂SO₄ / 0.010 L = 1.229 M

  • Finally, the <u>concentration of the original acid solution is:</u>

1.229 M*\frac{250mL}{25mL} = 12.29 M

5 0
3 years ago
I AM GIVING BRAINLIEST PLEASEE HELPPPP I NEED HELPPPPPP PLEAEEEEEE
True [87]

Answer:

0.479 M or mol/L

Explanation:

So Molarity is moles/litres of solution...often written as M=mol/L

So here we are given grams of BaCl2 which we have to convert to moles. To convert to moles of BaCl2 we have to divide 63.2 g BaCl2 by molar mass of BaCl2 which is 208.23 g/mol so you get 63.2/208.23 = 0.3035 moles of BaCl2

Second step is converting the 634mL to litres by simply dividing by 1000 because we know 1 litre has 1000ml so 634/1000 = 0.634L

Now we just plug these guys in our molarity formula M=mol/L

M= 0.3035/0.634 = 0.479 M or mol/L

3 0
3 years ago
Read 2 more answers
Which characteristic of minerals is represented in this picture?
Marianna [84]
B is the correct answer to your question

7 0
3 years ago
Read 2 more answers
Arrange the elements in order of increasing atomic radlus. Use the periodic table
nlexa [21]
Largest to smallest: barium, calcium, selenium, oxygen
3 0
2 years ago
Read 2 more answers
If 0.98 moles of BaCl2 are dissolved in enough water to make a 1.2-liter solution, what is the resulting molarity?
Svetradugi [14.3K]
<span>Correct Answer: <u>Option B i.e. 0.82 M </u>

Reason:
<em>Given:</em> number of moles of BaCl2 = 0.98, Volume of solution = 1.2 l

Molarity of solution = </span>\frac{\text{number of moles}}{\text{volume of solution (l)}}<span>
                               = </span>\frac{0.98}{1.21}<span>
                               = 0.82 M

 Thus, molarity of the solution is 0.82 M</span>
4 0
3 years ago
Read 2 more answers
Other questions:
  • The compressibility factor of any gas at a specific value of reduced temperature, T Tc, and reduced pressure, P Pc does not have
    12·1 answer
  • Is Carbon Dioxide a MIXTURE or a PURE SUBSTANCE? I think that it is a mixture since it has two types of atoms; Carbon and Oxygen
    5·1 answer
  • It was mentioned that you should not expect the pH of distilled water to be 7.00 as ordinarily measured in the laboratory. What
    8·1 answer
  • A type of building that absorbs the energy of seismic waves is a fixed-base building. True or False
    13·2 answers
  • The difference in hydrogen ion concentration between solutions with ph4 and ph5 is
    14·1 answer
  • Part a what is the concentration of k+ in 0.15 m of k2s? express your answer to one decimal place and include the appropriate un
    6·2 answers
  • Help me please I really need this tomorrow
    14·2 answers
  • 235 92 U &gt;144 56 Ba + 3 1 on
    5·1 answer
  • A ball has a mass of 2.0 kg and travels a distance of 24 meters in 10 seconds what is the Velocity
    5·1 answer
  • A pinch of salt has
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!