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
gavmur [86]
2 years ago
15

A jar is filled with water, and the lid is closed tightly. The jar is kept at constant temperature. What happens at the surface

of the water?
A.
Water molecules evaporate and condense at the same rate.
B.
Water molecules evaporate and condense, but evaporation occurs more quickly.
C.
Water molecules evaporate only and do not condense.
D.
Water molecules condense only and do not evaporate.
Chemistry
1 answer:
Katarina [22]2 years ago
5 0
<h2>Hello!</h2>

The correct answer is A: Water molecules evaporate and condense at the same rate.

<h2>Why?</h2>

Evaporation is defined as the physical change from liquid to gas, and Condensation is the physical change from gas to liquid.

At any given temperature, these two processes occur at once, in a dynamic equilibrium.

When the lid is closed, evaporation occurs faster than condensation, and pressure increases. Then, when pressure reaches a critical value, condensation starts to occur faster than evaporation, until an equilibrium is reached, and the pressure of the water molecules in the gas phase is maximum for that temperature. The pressure at that point is called Vapor Pressure.

Have a nice day!

You might be interested in
A 170.0 g sample of an unidentified compound contains 29.84 g sodium, 67.49
GREYUIT [131]

The empirical formula : Na₂Cr₂O₇

<h3>Further explanation</h3>

Given

170 g sample contains :

29.84 g sodium, 67.49  g chromium, and 72.67 g oxygen

Required

The compound's empirical formula

Solution

mol ratio of elements :

Na : 29.84 : 23 g/mol = 1.297

Cr : 67.49 : 51,9961 g/mol = 1.297

O : 72.67 : 16 g/mol = 4.54

Divide by 1.297

Na : Cr : O = 1 : 1 : 3.5 = 2 : 2 : 7

6 0
2 years ago
HELP!!! PLEASE!!!
elena-14-01-66 [18.8K]
<span>Molarity is expressed as the number of moles of solute per volume of the solution. We solve the problem above as follows:

0.1000 mol Mg(NO3)2 / L (.1 L) ( </span><span>148.3 g / mol ) = 1.483 g Mg(NO3)2

</span>0.1000 mol Sr(NO3)2 / L (.1 L) ( 211.63 g / mol ) = 2.116 g Sr(NO3)2

Hope this answers the question. Have a nice day.
8 0
3 years ago
What can you infer is causing the cryosphere to change? Give two reasons. Explain why.
ikadub [295]

Answer:The crayosphere- it is the portion of the Earth's surface where water is in solid form for at least one month of the year..-has been shrinking in response to climate warming.The important outcome,however,is the change and the response the human social system (infrastructure,food ,water,recreation) will be have to that change...

I hope It helps

6 0
3 years ago
Explain the greenhouse gas effect
N76 [4]
“The trapping of the suns warmth in a planets lower atmosphere, due to the greater transparency of the atmosphere to visible radiation from the sun than to infrared radiation emitted from the planets surface.”
3 0
3 years ago
Aluminium containers are used to store and transport nitric acid(HNO3) but not NAOH why?​
alex41 [277]

Answer:

(<em>i) Concentrated HNO3 can be stored and transported in aluminium containers as it reacts with aluminium to form a thin protective oxide layer on the aluminium surface. This oxide layer renders aluminium passive. (ii) Sodium hydroxide and aluminium react to form sodium tetrahydroxoaluminate(III) and hydrogen gas.</em>

8 0
2 years ago
Other questions:
  • What are  human made of
    5·2 answers
  • Which chemical do you think would best maintain the pH of the pool water?
    12·2 answers
  • The amount of heat required to produce a given change in temperature can be calculated using the following formula:
    13·1 answer
  • Calculate the vapor pressure of spherical water droplets of radius (a) 17 nm and (b) 2.0 μm surrounded by water vapor at 298 K.
    14·1 answer
  • Radiation is energy that is
    10·1 answer
  • The isotope sulfur is represented as sulfur-35 or S-35, what does the number 35 signify?
    11·1 answer
  • Can someone pls help me with this!
    9·1 answer
  • What happens more when cooking, chemical changes or physical changes?
    12·2 answers
  • Atoms are the <br> piece of an
    15·1 answer
  • Which explanation describes why seafloor spreading occurs?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!