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
hammer [34]
3 years ago
14

Calculate the decrease in temperature when 6.00 L at 25.0 °C is compressed to 2.50 L.

Chemistry
1 answer:
N76 [4]3 years ago
4 0

Answer:

-149.0K

Explanation:

Charles's law states that the volume of a gas is directly proportional to the absolute temperature under constant pressure.

The equation is:

V1/T1 = V2/T2

<em>Where V1 is initial volume = 6.00L</em>

<em>T1 is absolute initial temperature = 25.0°C + 273 = 298K</em>

<em>V2 is final volume = 2.50L</em>

<em>T2 is our incognite</em>

<em />

Replacing:

6.00L/298K = 2.50L/T2

T2 = 2.50L * 298K / 6.00L

T2 = 124.17K

The temperature is 124.17K - 273.15K =

<h3>-149.0K</h3>

<em />

You might be interested in
For the following reaction, find the value of Q and predict the direction of change, given that a 1L flask initially contains 2
Tresset [83]

Answer:

C) Q < K, reaction will make more products

Explanation:

  • 1/8 S8(s)  + 3 F2(g)  ↔  SF6(g)

∴ Kc = 0.425 = [ SF6 ] / [ F2 ]³

∴ Q = [ SF6 ] / [ F2 ]³

∴ [ SF6 ] = 2 mol/L

∴ [ F2 ] = 2 mol/L

⇒ Q = ( 2 ) / ( 2³)

⇒ Q = 0.25

⇒ Q < K, reaction will make more products

 

5 0
3 years ago
How a neutral object is different from a negatively charged object.
Naddik [55]

Answer:

Charged objects have an imbalance of charge - either more negative electrons than positive protons or vice versa. And neutral objects have a balance of charge - equal numbers of protons and electrons. ... Their presence (or absence) will have no direct bearing upon whether an object is charged or uncharged.

3 0
3 years ago
How many moles are there in 2.73 x 1023 water atoms? a 4.65 mol b 0.453 mol c 0.3.53 mol d 0.270 mol
Zinaida [17]

Answer:

b. 0.453 mol

Explanation:

To convert atoms to moles, use Avogadro's number (6.022×10²³).  Divide the amount of atoms that are given by Avogadro's number.  You should get 0.453 mol.

\frac{2.73*10^{23} }{6.022*10^{23} } =0.4533

5 0
3 years ago
You are assigned the task of separating a desired granular material, with a density of 3.26 g/cm3, from an undesired granular ma
Svetradugi [14.3K]

Answer:

diiodomethane

Explanation:

The densities of each of the liquids mentioned in the question are stated below;

CCl4- 1.59 g/cm^3

Hexane- 0.672 g/cm^3

Benzene- 0.8765 g/cm^3

Diiodomethane- 3.3 g/cm^3

Clearly, the density of diiodomethane methane is almost the same as that of the desired granular material, hence the undesired granular material having a density of 2.04 g/cm3 will float in diiodomethane thus separating the two granular materials.

5 0
3 years ago
What type of energy changes take place when a candle burns
frutty [35]
The two types of energy changes that occur are heat and light changes.
7 0
3 years ago
Read 2 more answers
Other questions:
  • Jill is studying the temperature output of an ammonium chloride hand warmer with a calorimeter. What change should she expect to
    10·1 answer
  • Classify these salts as acidic, basic, or neutral. KCL, NH4Br, K2CO3, NaCN, LiClO4? This is what I put but got it wrong: KCl = b
    12·2 answers
  • A 642 mL sample of oxygen gas at 23.5°C and 795 mm Hg, is heated to 31.7°C and the volume of the gas expands to 957 mL. What is
    8·1 answer
  • Many insulating materials contain spaces filled with air because air is what type of material?
    13·1 answer
  • Leon made a chart to summarize some characteristics of LED light bulbs.
    10·2 answers
  • 5.What is the chemibal formula for lead (II) iodide
    7·1 answer
  • Why do your feet burn when you walk across beach sand on a sunny summer
    7·1 answer
  • Based on the information above, which statement provides evidence that a chemical reaction has occurred?
    6·1 answer
  • Silver Nitrate &amp; Potasiumbromide​
    9·1 answer
  • 6Most types of heather grow better in acidic soil.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!