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
fiasKO [112]
3 years ago
8

At which of the following temperatures is the average kinetic energy of the molecules of a substance the greatest?

Chemistry
2 answers:
WINSTONCH [101]3 years ago
6 0

D. The higher the temperature the more the atoms are shifting and shaking around

liubo4ka [24]3 years ago
3 0

Answer:  65.4^0C

Explanation:

Average kinetic energy is defined as the average of the kinetic energies of all the particles present in a system. It is determined by the equation:

K=\frac{3RT}{2}

R= gas constant

T= temperature in kelvin

From above, it is visible that kinetic energy is directly related to the temperature of the system. So, if temperature is more, average kinetic energy of the system is more and vice-versa.

a. 18^0C=18+273=291K

b. 20.4^0C=20.4+273=293.4K

c. 36.2^0C=36.2+273=309.2K

d. 65.4^0C=65.4+273=338.4K

Thus substance at 65.4^0C will have greatest kinetic energy.

You might be interested in
______ break down sugars to produce energy.
Mariana [72]

Answer:

mitochondria

Explanation:

I took the test

8 0
2 years ago
Which of the following factors could you change in a system and not change its induced EMF?
krok68 [10]
The options attached to the question above are listed below:
A. Magnetic field.
B. Type of wire.
C. Velocity of the wire.
D. Length of the wire in the field.

ANSWER
The correct option is B.
The factors that determine the induced current in a system are: the number of wires in the coil, the strength of the magnetic field and speed of armature rotation [speed of cutting]. Generally, the induced electromotive force across a conductor is equal to the rate at which magnetic flux is cut by the conductor. The type of wire used does not affect the induced EMF.
8 0
3 years ago
Read 2 more answers
ANSWER FAST PLZ!!!!!!!!!
valina [46]
I think the answer is B
7 0
3 years ago
Read 2 more answers
Mark the statement as true or false.
alex41 [277]

Answer:

False

Explanation:

The ideas were not proposed

3 0
2 years ago
How many valence electrons does magnesium (Mg) have?Question options:A) 6B) 2C) 12D) 0
wel

INFORMATION:

We must find the number of valence electrons for magnesium

STEP BY STEP EXPLANATION:

In order to know the number of valence electrons for Mg, we need to locate the element in the periodic table

Since Mg is in the second group of the periodic table, it has two valence electrons.

ANSWER:

B) 2

4 0
1 year ago
Other questions:
  • when carbon is burned in the air, it reacts with oxygen to form carbon dioxide. when 22.8 g of carbon were burned in the presenc
    12·1 answer
  • 4He 2
    14·1 answer
  • Suppose your thermometer is off by 1.5 oc i.e. it reads values that are 1.5 oc higher. how would this affect the results in this
    10·1 answer
  • How many moles are there in 7.50 x 10^23 atoms of iron?
    10·1 answer
  • Concentrated hydrochloric acid has a molarity of 6.0 M. How many mL of HCI must be used to make 500.0 mL of 2.0 M Hydrochloric a
    12·1 answer
  • Sulfuric acid (h2so4) is spilled on a laboratory bench. which chemical would be useful for neutralizing the acid
    13·1 answer
  • How many minutes are in 3.5 years
    9·1 answer
  • What type of energy conversion is taking place inside a flashlight when it is on?
    9·2 answers
  • What is the equilibrium constant of a reaction?
    8·1 answer
  • A 45.7 block of an unknown metal at 74.2 °C is placed in 72.9 g of water at 15.9 °C. If the
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!