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
stepladder [879]
2 years ago
5

A system fitted with a piston expands when it absorbs 53.1 ) of heat from the surroundings. The piston is working against a pres

sure of 0.677 atm. The final volume is 63.2 L. What was the initial volume of the system if the internal energy of the system decreased by 108.3 J?
a. 65.6 L
b. 64.0 L
c. 70.8 L
d. 60.8 L
e. 54.4L
Chemistry
1 answer:
Hoochie [10]2 years ago
7 0

Answer:

d. 60.8 L

Explanation:

Step 1: Given data

  • Heat absorbed (Q): 53.1 J
  • External pressure (P): 0.677 atm
  • Final volume (V2): 63.2 L
  • Change in the internal energy (ΔU): -108.3 J

Step 2: Calculate the work (W) done by the system

We will use the following expression.

ΔU = Q + W

W = ΔU - Q

W = -108.3 J - 53.1 J = -161.4 J

Step 3: Convert W to atm.L

We will use the conversion factor 1 atm.L = 101.325 J.

-161.4 J ×  1 atm.L/101.325 J = -1.593 atm.L

Step 4: Calculate the initial volume

First, we will use the following expression.

W = - P × ΔV

ΔV = - W / P

ΔV = - 1.593 atm.L / 0.677 atm = 2.35 L

The initial volume is:

V2 = V1 + ΔV

V1 = V2 - ΔV

V1 = 63.2 L - 2.35 L = 60.8 L

You might be interested in
Gold has a high potential and potassium has a low chemical potential.
Aleksandr-060686 [28]
Gold potential is the correct answer
5 0
2 years ago
A West Virginia coal is burned at a rate of 8.02 kg/s. The coal has a sulfur content of 4.40 % and the bottom ash contains 2.80
aleksley [76]

Answer: The annual emission rate of SO2 is 1.08 × 10^{7} kg/yr

Explanation:

  • The rate <em>r</em> at which the coal is been burnt is 8.02 kg/s.
  • Amount of sulphur in the burning coal is given as 4.40 %

i.e., 4.4/100 × 8.02 = 0.353 kg/s. Which is equivalent to the rate at which the sulphur is been burnt.

  • Since the burning of sulphur oxidizes it to produce SO2, it follows that the non-oxidized portion of the sulphur will go with the bottom ash.

  • The bottom ash is said to contain 2.80 % of the input sulphur.

  • Hence the portion of the SO2 produced is 100 — 2.80 = 97.20 %.

  • The rate of the SO2 produced is percentage of SO2 × rate at high sulphur is been burnt.

  = 97.20/100 × 0.353 kg/s.

  = 0.343 kg/s.

  • To get the annual emission rate of SO2, we convert the kg/s into kg/yr.

1 kg/s = 1 kg/s × (60 × 60 × 24 × 365) s/yr

1 kg/s = 31536000 kg/yr

  • Therefore, 0.343 kg/s = 0.343 × 31536000 kg/yr

     = 10816848 kg/yr

     = 1.08 × 10^7 kg/yryr.

5 0
2 years ago
What is the expensive property of a substance
olya-2409 [2.1K]

is there any choices?

6 0
3 years ago
The western coast of the United States has been increasing in size for millions of years.
fredd [130]

Answer:

accretion at convergent boundaries

Explanation:

8 0
2 years ago
Read 2 more answers
How many electrons does carbon lack in its outer shell? biochemistry
tekilochka [14]
A neutral carbon doesn't lack any electrons. It has exactly the same number of electrons as it has neutrons.
However, it has four electrons in its outer shell in comparison with eight electrons for a noble gas.
In that sense, it needs four electrons to complete its second shell.<span />
7 0
3 years ago
Other questions:
  • A temperature of 20 degrees C is equivalent to approximately
    5·2 answers
  • Write the formulas of the acids which liberated hydrogen gas when reacting with magnesium metal
    8·1 answer
  • The decomposition of hydrogen iodide on a gold surface at 150 °C HI(g)½ H2(g) + ½ I2(g) is zero order in HI with a rate constant
    5·1 answer
  • A student is reading about a scientific claim in a newspaper article. The article include
    11·1 answer
  • What physical process changed the geological area and composition of the Earth's oceans shown in the two pictures below
    14·2 answers
  • What is the density of an object with a volume of 30ml and a mass of 90 grams
    6·1 answer
  • What is an acid in Science​
    11·2 answers
  • What is the final temp of
    7·1 answer
  • A gas has a volume of 250 mL at 0.29 atm. What will its volume be if the pressure is changed to 0.70
    8·1 answer
  • A high school girl was getting ready for a big date but discovered with horror that her silver necklace was tarnished. having ju
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!