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
vekshin1
3 years ago
7

Which of the following is NOT true of white dwarfs?

Chemistry
2 answers:
ella [17]3 years ago
8 0
The answer is they are cold because white dwarfs are hot when they form.
liq [111]3 years ago
6 0

Answer:

A white dwarf is what stars like the Sun become after they have exhausted their nuclear fuel. Near the end of its nuclear burning stage, this type of star expels most of its outer material, creating a planetary nebula. Only the hot core of the star remains. ... That means a white dwarf is 200,000 times as dense.

Explanation:

they are cold

they are about the size of Earth

these both are not true

You might be interested in
Explain why the pressure in a sealed container of gas decreases when heat is added to the system?
weeeeeb [17]

Answer:

the question is bogus

see explanation

Explanation:

explain why the pressure in a sealed container of gas decreases when heat is added to the system?

when you add heat to the gas molecules in a sealed container, the molecules move faster and the pressure INCREASES!!!

IT DOES NOT DECREASE

PV =nrT

IF THE O THEVOLUME IS FIXED (REIN A SEALED CONTAINER) AND THE  NUMBER OF MOLES n is FIXED, THEN THE PRESSURE IS DIRECTLY PROPORTIONAL THE TEMPERATURE

THE GREATER T, THE GREATER P

4 0
3 years ago
| | | |<br> | | | |<br> | | | |<br> VVV
zubka84 [21]

Answer:the answer would be a because that's what it would talk about and is the correct answer

Explanation:yes it is correct just answer it trust me

7 0
4 years ago
In general, as the energy of a sound wave increases,
blsea [12.9K]
The intensity of the sound will increase more as the energy of the sound wave increases.

I hope this helps you:)
8 0
3 years ago
Read 2 more answers
How many elements are there?
svlad2 [7]

Answer:

118 is your answer!

5 0
3 years ago
Read 2 more answers
At 25 ∘ C , the equilibrium partial pressures for the reaction 3 A ( g ) + 4 B ( g ) − ⇀ ↽ − 2 C ( g ) + 3 D ( g ) were found to
VMariaS [17]

<u>Answer:</u> The standard Gibbs free energy of the given reaction is 6.84 kJ

<u>Explanation:</u>

For the given chemical equation:

3A(g)+4B(g)\rightleftharpoons 2C(g)+3D(g)

The expression of K_p for above equation follows:

K_p=\frac{(p_C)^2\times (p_D)^3}{(p_A)^3\times (p_B)^4}

We are given:

(p_A)_{eq}=5.70atm\\(p_B)_{eq}=4.00atm\\(p_C)_{eq}=4.22atm\\(p_D)_{eq}=5.52atm

Putting values in above expression, we get:

K_p=\frac{(4.22)^2\times (5.52)^3}{(5.70)^3\times (4.00)^4}\\\\K_p=0.0632

To calculate the equilibrium constant (at 25°C) for given value of Gibbs free energy, we use the relation:

\Delta G^o=-RT\ln K_{eq}

where,

\Delta G^o = standard Gibbs free energy = ?

R = Gas constant = 8.314 J/K mol

T = temperature = 25^oC=[273+25]K=298K

K_{eq} = equilibrium constant at 25°C = 0.0632

Putting values in above equation, we get:

\Delta G^o=-(8.314J/Kmol)\times 298K\times \ln (0.0632)\\\\\Delta G^o=6841.7J=6.84kJ

Hence, the standard Gibbs free energy of the given reaction is 6.84 kJ

6 0
4 years ago
Other questions:
  • A student made the following diagram to represent cellular respiration.
    12·2 answers
  • What is the outcome of all chemical changes when two substances are combined?
    14·2 answers
  • What physical barrier separated groups of snapping shrimp approximately 3 million years ago?
    11·1 answer
  • What does the force of gravity on an object depend on
    14·2 answers
  • ¿Cuáles son las semejanzas y diferencias en las formas de transmisión de enfermedades virales y bacterianas? (Considera tipos de
    5·1 answer
  • Some people think hydropower should be used to supply ali of the electricity for the United States. Which of the following state
    13·2 answers
  • What pressure will 14.0 g of CO exert in a 3.5 L container at 75°C
    9·1 answer
  • Please help !!
    13·1 answer
  • Which of the following is an example of a physical change?(1 point)
    7·2 answers
  • Which law states that the volume of a gas is proportional to the moles of the gas when pressure and temperature are kept constan
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!