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
Sunny_sXe [5.5K]
3 years ago
9

Select the correct answer.

Chemistry
1 answer:
lorasvet [3.4K]3 years ago
5 0

Answer:

D. the energy release increases the molecular motion but decreases the kinetic

energy of the substance

You might be interested in
Calculate the volume of one mole of a gas at 1.00 atm pressure and 0 °C.
N76 [4]

Answer:

Solution:-

The gas is in the standard temperature and pressure condition i.e. at S.T.P

Therefore,

V

i

​

=22.4dm

3

V

f

​

=?

As given that the expansion is isothermal and reversible

∴ΔU=0

Now from first law of thermodynamics,

ΔU=q+w

∵ΔU=0

∴q=–w

Given that the heat is absorbed.

∴q=1000cal

⇒w=−q=−1000cal

Now,

Work done in a reversible isothermal expansion is given by-

w=−nRTln(

V

i

​

V

f

​

​

)

Given:-

T=0℃=273K

n=1 mol

∴1000=−nRTln(

V

i

​

V

f

​

​

)

⇒1000=−1×2.303×2×273×log(

22.4

V

f

​

​

)

Explanation:

6 0
2 years ago
How many moles are in an 11mL solution of NaOh and KHP (C8H4O4)​
zalisa [80]

Answer:

Calculate the molar concentration of the NaOH solution that you prepared Number of moles of KHP = Number of moles NaOH = 2.476 x 10 -3 moles Number of moles NaOH = Mb x Vb Mb = 2.476 x 10 -3 moles / 0.0250 L (equivalence point) = 0.0990 M 3

Explanation:

6 0
3 years ago
8. The level of the water in the open aquarium tank goes down each day. Why?
yan [13]

Answer:

Because of evaperation

Explanation:

7 0
2 years ago
Read 2 more answers
Molecular formula of SO2
qwelly [4]
That is the molecular formula of sulfur dioxide
7 0
2 years ago
Whats the formula and molar mass of chromium (III) bicarbonate. <br><br> Answer fast plz
Tema [17]

Answer:

Cr(HCO3)3

Explanation:

Molar mass: 235.0466

3 0
2 years ago
Other questions:
  • How many moles of isooctane must be burned to produce 100 kJ of heat under standard state condaitions?
    12·1 answer
  • When is potential energy transformed into kinetic energy
    5·1 answer
  • What is the difference between B-cell lymphocytes and T-cell lymphocytes?
    12·2 answers
  • Convert 5.4 atm to torr
    10·1 answer
  • A sample of ph3 has mass 27.5g how many molecules are in this sample
    7·1 answer
  • How many atoms in 3Mg(C7H5O3)2?<br><br> Mg:<br> C:<br> H:<br> O:
    9·1 answer
  • Name the following alkyne.<br> Please help me &lt;3
    12·1 answer
  • I smell onions.
    9·2 answers
  • Accidentally sent a message! never mind
    12·1 answer
  • Do you think flowers are important to mindkind? If yes explain why in your own words please it would mean a lot!!
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!