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
Rzqust [24]
3 years ago
8

a chamber with a fixed volume of 1.0 meters cubed contains a monatomic gas at 3.00 *10^K. The chamber is heated to a temperature

of 400 K. This operation requires 10.0 J of heat. How many gas molecules are in the chamber
Physics
1 answer:
igomit [66]3 years ago
3 0

Answer:

Explanation:

Given

Volume of fixed chamber V=1 m^3

Initial Temperature T_1=300 K

Final Temperature T_2=400 K

Heat Supplied Q=10 J

From First law of thermodynamics

Change in internal energy of the system is equal to heat added minus work done by the system

\Delta U=Q-W

as the volume is fixed therefore work

W=\int PdV=0

thus \Delta U=mc_v\Delta T=Q

c_v for mono-atomic gas is 12.471 J/K-mol

n\times 12.471\times (400-300)=10

n=0.008018 mol

and 1 mole contains 6.022\times 10^{23} molecules

thus  No of molecules=0.008018\times 6.022\times 10^{23}

No of molecules=4.82\times 10^{21} molecules

You might be interested in
1. Calculate the work done by a 47 N force pushing a pencil 0.26 m.<br> 47x .26 = 12J<br> Solve it
ziro4ka [17]

Answer:

I need help with one to

Explanation:

Im trying to ask someone but no one knows :(

7 0
3 years ago
Suppose a single light bulb burns out. How do you think this will affect lights that are strung
Gnom [1K]
The other lights wouldn't be affected?

:/

7 0
3 years ago
Read 2 more answers
Which of the following best explains why lightning occurs?
Flura [38]

Answer:

God strikes lightening.

7 0
3 years ago
Read 2 more answers
A 1700kg rhino charges at a speed of 50.0km/h. what average force is needed to bring the rhino to a stop in 0.50s?
uranmaximum [27]
From 50km/h to 0km/h in 0.5s we need next acceleration:
First we convert km/h in m/s:
50km/h = 50*1000/3600=13.8888 m/s
a = v/t = 13.88888/0.5 = 27.77777 m/s^2

Now we use Newton's law:

F=m*a

F=1700*27.7777 = 47222N
6 0
3 years ago
The inductive reactance of the circuit is exactly twice the resistance: XL=2R. Adjust the phasor that represents the voltage acr
SVETLANKA909090 [29]

Answer:

∅=63.43^{0}

Explanation:

z=impedance

x_{l}=2R

R=R

The resultant of the resistances in the circuit is called impedance

x_{l} is inductive reactance of the circuit

R is the resistance of the resistor

z=\sqrt{xl^{2}+R^2 }

z=\sqrt{2R^{2}+R^2 }

Z=\sqrt{5R^2}

Z=R\sqrt{5}ohms

tan∅=2R/R

tan∅=2

∅=Tan^-1(2)

∅=63.43^{0}

phase angle is ∅=63.43^{0}

3 0
3 years ago
Other questions:
  • What are two main factors that affect how quickly a coastline erodes?
    14·1 answer
  • PLEASE HELP ASAP!! WILL MARK AS BRAINLIEST IF ANSWERED NOW!!
    13·1 answer
  • What is the importance of law of conservation of mass
    12·1 answer
  • Calculate the effective value of g, the acceleration of gravity, at 6700 m , above the Earth's surface. g
    11·1 answer
  • The law of conservation of energy states that energy cannot be<br> vor destroyed.
    12·1 answer
  • 5.
    9·1 answer
  • Which is the weakest of the four fundamental forces?
    6·2 answers
  • TIMED! URGENT! REALLY APPRECIATE HELP!! TYSM!!!!!!
    11·2 answers
  • Si tengo 4litros de agua a 20C, calcula cuantos litros de agua a 32C tengo que agregar para que su temperatura de equilibrio sea
    10·1 answer
  • Which of the following would typically be used to express speed
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!