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
Oksi-84 [34.3K]
3 years ago
12

Two litres of an ideal gas at a pressure of 10 atm expands isothermally into a vacuum until its total volume is 10 litres. How m

uch heat is absorbed and how much work is done in the expansion ?
Chemistry
1 answer:
nlexa [21]3 years ago
4 0

Answer:

The work done and heat absorbed are both -8,1 kJ

Explanation:

The work done in an isobaric process is defined as:

W = -P (Vf - Vi)

Where P is pressure ( 10 atm)

Vf = 10 L

Vi = 2 L

Thus, <em>W = -80 atm×L ≡ -8,1 kJ</em>

This is the work done in expansion of the gas.  As the gas remains at the same temperature, there is no change in internal energy doing that all work was absorbed as heat.

I hope it helps!

You might be interested in
What is the pressure of a mixture of oxygen, nitrogen and carbon dioxide gases if the pressures of these gases are as follows: P
AleksandrR [38]

Answer:

his is an example of a first-year chemistry question where you must first convert two of the pressures to the units of the third and add them up, per Dalton’s law of additive pressures. There are three possible answers, one for each of the three pressure units.

1 atm = 760 torr …… torr and mm Hg are the same

1 atm = 101.3 kPa

Dalton’s law:

P(total) = P(O2) + P(N2) + P(CO2)

Explanation:

Gases will assume whatever pressure depending on the equation of state of the mixture (in this case) and the volume htey are contained in. That could be the ideal gas law and simple mixing law, If you are quoting the partial pressures which you call simply “the pressure” of each gas, and that these refer to their values in the present mixture, then yes, we would add them up. The pressures are low enough for the ideal gas law to apply provided the temperature is not extremely low as well .

8 0
2 years ago
In a Dam, If we doubled the depth of the dam the hydrostatic force will be ?
AnnZ [28]

Answer: Option (A) is the correct answer.

Explanation:

Force acting on a dam is as follows.

                  F = \frac{1}{2}\rho g\omega H^{2} .......... (1)

Now, when we double the depth then it means H is increasing 2 times and then the above relation will be as follows.

                F' = \frac{1}{2}\rho g\omega (2)^{2}

               F' = \frac{1}{2}\rho g\omega 4 ........... (2)

Now, dividing equation (1) by equation (2) as follows.

          \frac{F}{F'} = \frac{\frac{1}{2}\rho g\omega H^{2}}{\frac{1}{2}\rho g\omega 4}  

Cancelling the common terms we get the following.

                 \frac{F}{F'} = \frac{1}{4}    

                   4F = F'

Thus, we can conclude that if doubled the depth of the dam the hydrostatic force will be 4F.

4 0
2 years ago
3. What are the products of a neutralization reaction?
Nadusha1986 [10]

Answer:

Neutralization reactions occur when two reactants, an acid and a base, combine to form the products salt and water.

5 0
3 years ago
Read 2 more answers
Why are people against saving the ozone layer?
nalin [4]
Because they don't care and think the ozone layer is fine.
3 0
2 years ago
6. What is the atomic number of the element?
zheka24 [161]

Answer:

For O: atomic number = 8 # neutrons = 8

For Al: atomic mass = 27, # electrons = 13

7 0
3 years ago
Other questions:
  • In an electrically neutral atom of any element, there are equal numbers of
    13·1 answer
  • What is avogadro’s number
    8·2 answers
  • Consider this initial-rate data at a certain temperature for the reaction described by N2O3(
    5·2 answers
  • Explain why the pbcl2 dissolved when water was added
    8·1 answer
  • Calculate the mass of liquid with density of 3.3 g/mL and a volume of 25 oz
    7·1 answer
  • The atomic number, or _____ number, is the described as the number of _____ in the nucleus of an chemical element.
    14·1 answer
  • Can you explain what makes Earth habitable using science vocabulary words system &amp; planetary geologist
    9·2 answers
  • At which part of a river would you have the best luck growing food?
    11·2 answers
  • What item is made from a synthetic material
    13·1 answer
  • During complete combustion, natural gas combines with oxygen to produce _____.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!