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
maksim [4K]
3 years ago
9

At 4.00 l, an expandable vessel contains 0.864 mol of oxygen gas. how many liters of oxygen gas must be added at constant temper

ature and pressure if you need a total of 1.60 mol of oxygen gas in the vessel
Physics
1 answer:
svet-max [94.6K]3 years ago
6 0

Givens
=====
V = 4.00 L
T = 273oK We're assuming the temperature does not change, just the pressure.
n = 0.864 moles
R = 8.314 joules / mole  * oK
P = ?????

Formula
======
PV = n*R*T
P = n*R*T/V
P = 0.864 * 8.314 * 273 / 4
P = 490 kpa


You have to add 1.6 – 0.864 = 0.736 moles of gas.


We have to assume that the temperature and pressure remain the same when we add the 0.736 moles of gas. We are now looking for the volume.


PV = n*R*T

<span> V = 0.736 * 8.314 * 273 / 490</span>

V = 3.41 L Remember this is at about 4 atmospheres so we have to convert to Standard Pressure.

Total Volume = 3.41 + 4.00 = 4.41


V1 * P1 = V2 * P2

P1 = 490 kPa

P2 = 101 kPa

V1 = 7.41 L

V2 = ????


<span> <span> 7.41* 490 = V2 * 101 V2 = 7.41 * 490 / 101 V2 = 35.94 L </span> </span>


<span>You had 4 L now you need 31.94 more.</span> 
You might be interested in
(30 points!)Which of the following musical instruments has the greatest inertia
faltersainse [42]
The answer is B.) hope this helps
3 0
3 years ago
Read 2 more answers
A student walks 31 m east, then 16 m west. Make east positive. What is their<br> displacement?
Marianna [84]
Displacement = 31 - 16 = +15 m
3 0
3 years ago
I need help with Science! ASAP!!! ASAP!!! ASAP!!!
Trava [24]
Possibilities . . .

-- nuclear reaction
-- nuclear fission
-- nuclear fusion
-- radioactive decay.

Any of these makes it a true statement.
5 0
3 years ago
Which of the following statements explains how total time spent in the air is affected as a projectile's angle of launch is incr
charle [14.2K]

Answer:

Therefore letter <u>C is the correct answer.</u>

Explanation:

In a projectile motion the total time in the air can be calculated using the following equation:

We analyze the y-component motion.

v_{fy}=v_{iy}-gt

When the final velocity (v(f)) is equal to zero we calculate the upward time and multiplying it by 2 we find the total time in the air. So we will have:

t_{tot}=2\frac{v_{iy}}{g}

t_{tot}=2\frac{v_{i}sin(\theta)}{g}

We can see that the <u>total time is directly proportional to the angle</u>, then when <u>θ increase t increase.</u>

Therefore letter C is the correct answer.

I hope it helps you!  

3 0
3 years ago
Suppose the conducting wire (with resistance R) was replace with one of the same material but has its dimension doubled (the len
sveticcg [70]
Resistance of a wire is directly proportional to its length and inversely proportional to the square of its radius.
Thus, if the length is doubled, and the radius is halved:
R₂ = 2R₁/(1/2)²
R₂ = 8R₁
Therefore the resistance increases eight times.
6 0
3 years ago
Other questions:
  • A projectile is fired from the origin (at y = 0 m) as shown in the diagram. The initial velocity
    6·1 answer
  • If a projectile fired beneath the water, straight up, breaks through the surface at a speed of 13m/s, to what height above the w
    13·1 answer
  • According to the Big Bang Theory, the density and temperature of the Universe is ___________ now than in the past.
    8·1 answer
  • During one year a population of blue jays has zero population growth. which must be true about the blue jay population at the en
    10·2 answers
  • A: How far did she travel? <br><br><br><br> B: How long did she take?
    12·1 answer
  • How do you find the net force of 225 N
    7·1 answer
  • Can someone please help me with this one
    14·1 answer
  • Due today HELP HELP HELP
    7·1 answer
  • What is the volume of an object that has Mass=100g and Density= 745g/mL.
    6·1 answer
  • How does water form in the clouds? Explain how
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!