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
svetlana [45]
3 years ago
10

Tricia puts 44 g of dry ice (solid CO2) into a 2.0-L container and seals the top. The dry ice turns to gas at room temperature (

20°C) Find the pressure increase in the 2.0-L container. (One mole of CO2 has a mass of 44 g, R = 0.0821 L×atm/molxK. Ignore the initial volume of the dry ice.)
A) 6 atm
B) 18 atm
C) 2 atm
D) 12 atm
Physics
1 answer:
Irina-Kira [14]3 years ago
6 0

Answer:

Corect answer is D

Explanation:

Assuming that the  C O 2  gas is behaving ideally, therefore, we can use the ideal gas law to find the pressure increase in the container by:

P V=nRT ⇒  P=n R T /V

n=no of moles of the gas = mass/molar mass

Molar mass o f  C O 2=44g/mol, mass = 44g

mole n = 1mole

T=20C=293K

R=0.0821L.atm/mol.K

P=nRT/V

P = 1 x 0.0821 x 293/2

P = 12atm

You might be interested in
A uniform crate with a mass of 22 kg must be moved up along the 15° incline without tipping. The force P is horizontal. Determin
Paul [167]

Answer:

F_x=208.25\ N

Explanation:

Given that,

Mass of a crate is 22 kg

It moved up along the 15 degrees incline without tipping.

We need to find the corresponding magnitude of force P. The force P is acting in horizontal direction.

It means that the horizontal component of force is given by :

F_x=F\cos\theta\\\\F_x=mg\cos\theta\\\\F_x=22\times 9.8\times \cos(15)\\\\F_x=208.25\ N

So, the horizontal component of force is 208.25 N.

6 0
3 years ago
Will upvote!!!!
juin [17]
D. potential energy, because there is a bunch of water pent up, essentially stationary, waiting to roll down the steep mountain from the peak, so to say. if the dam were to be removed it would become kinetic.
4 0
3 years ago
Read 2 more answers
Why do people have symptoms in their bodys
weeeeeb [17]

Body works like a computer whenever there is any problem it warns you and those warnings are termed as symptoms. Of the body doesn't show symptoms we won't be able to detect the problem in our body.

5 0
2 years ago
Read 2 more answers
An astronaut sitting on the launch pad on Earth's surface is 6,400 kilometers from Earth's center and weighs 400 newtons. Calcul
PIT_PIT [208]

Answer:

weight at height = 100 N .

Explanation:

The problem relates to variation of weight  due to change in height .

Let g₀ and g₁ be acceleration due to gravity , m is mass of the object .

At the surface :

Applying Newton's law of gravitation

mg₀ = G Mm / R²

At height h from centre

mg₁ = G Mm /h²

Given mg₀ = 400 N

400 = G Mm / R²

400 = G Mm / (6400 x 10³ )²

G Mm = 400 x (6400 x 10³ )²

At height h from centre

mg₁ =  400 x (6400 x 10³ )²/ ( 2 x 6400 x 10³)²

= 400 / 4

= 100 N .

weight at height = 100 N

5 0
3 years ago
The most likely models of the planet Mercury indicate that more than half the planet may be composed of________.
Oxana [17]

Answer:

iron

Explanation:

4 0
3 years ago
Other questions:
  • What is the velocity of 360?
    14·1 answer
  • Can anyone help me for this question please?? I really need help someone!!!
    15·1 answer
  • The earth revolves around the sun in the counterclockwise direction, completing one full revolution about every 365 days. In rea
    14·1 answer
  • Two forces F1 and F2 act on a 5.00 kg object. Taking F1=20.0N and F2=15.00N, find the acceleration of the object for the configu
    5·2 answers
  • 8. The moon has about 1/6th the gravity of the Earth. How would the potential energy of an object be different on the moon if it
    15·1 answer
  • The starships of the Solar Federation are marked with the symbol of the Federation, a circle, whereas starships of the Denebian
    10·1 answer
  • What is the wavelength of a wave traveling with a wave speed of 1348 m/s
    10·1 answer
  • 3. A 0.145 kg ball moving horizontally at 20 m/s is struck by a bat that causes the ball to move in the
    11·1 answer
  • 1. Who explained the motions of the planets of the solar system at the same
    6·1 answer
  • List out any 4 objectives of education​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!