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
expeople1 [14]
1 year ago
10

A sample of gas occupies a volume of 72.0 mL . As it expands, it does 141.2 J of work on its surroundings at a constant pressure

of 783 Torr . What is the final volume of the gas?
Chemistry
1 answer:
bagirrra123 [75]1 year ago
3 0

The final volume of the gas is  73.359 mL

<h3 />

Given :

A sample gas has an initial volume of 72.0 mL

The work done = 141.2 J

Pressure = 783 torr

The objective is to determine the final volume of the gas.

Since, the process does 141.2 J of work on its surroundings at a constant pressure of 783 Torr. Then, the pressure is external.

Converting the external pressure to atm; we have

External Pressure Pext:

P ext = 783 torr × \frac{1 atm}{760 torr}

Pext = 1.03 atm

The work done W =  Pext V

The change in volume ΔV= \frac{W}{Pext}

ΔV = \frac{141.2 J \frac{1 L atm}{101.325 J} }{1.03 atm}

ΔV = \frac{0.0014}{1.03}

ΔV = 0.001359 L

ΔV = 1.359 mL

The initial  volume = 72.0 mL

The change in volume V is ΔV = V₂ - V₁

-  V₂ = - ΔV - V₁

multiply both sides by (-), we have:

V₂ = ΔV + V₁

     =  1.359 mL + 72.0 mL

     = 73.359 mL

Therefore, the final volume of the gas is  73.359 mL .

Learn more about volume here:

brainly.com/question/27100414

#SPJ4

You might be interested in
Which gas law has assumptions of a fixed amount and temperature of a gas
romanna [79]
The answer is Boyle's law. Boyle's law states that the volume of a fixed mass of a gas is inversely proportional to its pressure at a constant absolute temperature.
That is; V α 1/P , at constant temperature and a fixed amount of the gas. 
Such that V= k/P where k is a constant 
4 0
3 years ago
What happens to electrons in the photoelectric effect?
mafiozo [28]

The correct answer is B. on Apex!

8 0
2 years ago
Read 2 more answers
Electromagnetic energy that travels in transverse waves which produces visible light is
Lubov Fominskaja [6]
Nuclear is the answer
8 0
2 years ago
Balance <br> Na2O+H2O → NaOH
AleksAgata [21]
Answer:
Na2O+H2O=2NaOH
Step by step exp.
Given:
Equation Na2O+H2O=NaOH
To find: Balance the equation
Solution:
Taking LHS of the equation
LHS=Na2O+H2O
There is 2 sodium, 2 oxygen,& 2 hydrogen
To balance the equation we have equal number of atom so we multply 2 to the RHS=2NaOH
There fore the equation form is
Na2O+H2O=2NaOH
8 0
3 years ago
Lewis dot structure for N3-
labwork [276]

Answer :

The steps involved in the electron dot structure of N^{3-} are :

First we have to determine the total number of valence electron in N^{3-}.

Number of valence electrons in N = 5

The charge on N is (-3). So, we add 3 electrons.

Total number of valence electrons = 5 + 3 = 8 electrons

The image is shown below.

4 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following phase changes is an exothermic change?
    10·2 answers
  • Calculate the percent error in calculating the pH of a 0.040 M HCl solution that is also 0.010 M in HNO3 using ionic strength an
    15·1 answer
  • Why is water necessary for living organisms?
    12·2 answers
  • he equilibrium constant, Kc , for the following reaction is 7.00×10-5 at 673 K.NH4I(s) NH3(g) + HI(g)If an equilibrium mixture o
    11·1 answer
  • Now can you answer pls
    9·1 answer
  • Identify the correct formula for ammonia.
    7·1 answer
  • NEED HELP ASAP
    13·2 answers
  • Atoms are composed of subtomatic particles called
    8·1 answer
  • How many moles of each element are in one mole of (NH4)2S? (3 points)
    5·2 answers
  • How do signals move through the nervous system?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!