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
viktelen [127]
3 years ago
15

What is the pressure of 2.0 mol nitrogen (N2) gas in a 0.5 L container at 310 K?

Chemistry
1 answer:
emmainna [20.7K]3 years ago
7 0

Answer:

10.304 kPa

Explanation:

n=mol nitrogen (N2) gas=2moles

Temperature=T=310 K

Volume=0.5 L=0.5 dm3

R=8.31 J K−1 mol−1

From Gerenal gas equation we know that

PV=nRT

P=nRT/V

Putting the values

P=(2*8.31*3100/(0.5)

P=10.304 kPa

or P=10304 Pa

You might be interested in
4. Which is produced when a base reacts with water?
Dennis_Churaev [7]

Answer:

hydroxide ion

Explanation:

I took the quiz

5 0
3 years ago
Read 2 more answers
Why do the air molecules inside a bicycle tire speed up as the temperature gets warmer?
liraira [26]
The correct answer of the given question above would be option A. The air molecules inside a bicycle tire speed up as the temperature gets warmer because the heat is transferred to the molecules and gives them more kinetic energy. <span>When </span>heat<span> is added to a substance, the </span>molecules<span> and atoms vibrate </span>faster<span>. </span>
6 0
3 years ago
Read 2 more answers
Which statements describe phase changes? Check all that apply. Particles in a liquid need to move more slowly in order to freeze
Kipish [7]

Answer: Statements (A), and (C) are correct.

Explanation:

The statements that are true are as follows.

  • Particles in a liquid need to move more slowly in order to freeze.

When a liquid freezes the molecules get attracted towards each other. This attraction of particles occurs slowly. Hence, this statement is true.

  • Attractive forces between the particles in a liquid are broken when a liquid boils.

When temperature is raised, the molecules in a liquid gains kinetic energy and start to move quickly in random directions. As a result, liquid state changes to gaseous state. Hence, this statement is true.

If the attractive force between gas molecules have to be increased, they should be moving slower instead because moving faster does not help attracting molecules together.

Hence, the statement particles in gas move fast enough to make more attractive forces when the gas condenses is not true.


4 0
3 years ago
Read 2 more answers
Researchers are investigating processed that happen during digestion which answer choice describes only a physical change during
dolphi86 [110]

Answer:Chewing in the mouth breaks food into smaller pieces

Explanation: all you are doing is breaking down the food in your mouth

6 0
3 years ago
A tank contains 90 kg of salt and 2000 L of water. Pure water enters a tank at the rate 6 L/min. The solution is mixed and drain
sashaice [31]

Answer:

a) 90 kg

b) 68.4 kg

c) 0 kg/L

Explanation:

Mass balance:

-w=\frac{dm}{dt}

w is the mass flow

m is the mass of salt

-v*C=\frac{dm}{dt}

v is the volume flow

C is the concentration

C=\frac{m}{V+(6-3)*L/min*t}

-v*\frac{m}{V+(6-3)*L/min*t}=\frac{dm}{dt}

-3*L/min*\frac{m}{2000L+(3)*L/min*t}=\frac{dm}{dt}

-3*L/min*\frac{dt}{2000L+(3)*L/min*t}=\frac{dm}{m}

-3*L/min*\int_{0}^{t}\frac{dt}{2000L+(3)*L/min*t}=\int_{90kg}^{m}\frac{dm}{m}

-[ln(2000L+3*L/min*t)-ln(2000L)]=ln(m)-ln(90kg)

-ln[(2000L+3*L/min*t)/2000L]=ln(m/90kg)

m=90kg*[2000L/(2000L+3*L/min*t)]

a) Initially: t=0

m=90kg*[2000L/(2000L+3*L/min*0)]=90kg

b) t=210 min (3.5 hr)

m=90kg*[2000L/(2000L+3*L/min*210min)]=68.4kg

c) If time trends to infinity the  division trends to 0 and, therefore, m trends to 0. So, the concentration at infinit time is 0 kg/L.

6 0
3 years ago
Other questions:
  • Quinine is an important type of molecule that is involved in photosynthesis. The transport of electrons mediated by quinone in c
    5·1 answer
  • Which excerpt from amy tan's "fish cheeks" is most clearly an example of conflict?
    14·2 answers
  • If you combine 290.0 mL 290.0 mL of water at 25.00 ∘ C 25.00 ∘C and 140.0 mL 140.0 mL of water at 95.00 ∘ C, 95.00 ∘C, what is t
    6·1 answer
  • Cabbage juice turns pink in solutions with pH below 7 and green in solutions with pH above 7. You drop some cabbage juice in a s
    12·1 answer
  • Which of the following is NOT a characteristic of metals?
    5·1 answer
  • Explain intermolecular forces cause water molecules to stick to a material like a glass pitcher​
    11·1 answer
  • What kind of chemical reaction is Al2+S3​
    13·1 answer
  • what can be inferred from a food product advertisement that claims 30% less fat than our leading competitors? ​
    12·2 answers
  • Which of the following is NOT a feature found on the Moon?
    15·1 answer
  • ¿Cómo puedes conocer tu condición física?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!