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irakobra [83]
3 years ago
11

What physical effect can change the boiling point of a substance?

Chemistry
2 answers:
AleksandrR [38]3 years ago
5 0
The correct answer for the following questions that are presented above are these ones:
(1) b. Pressure. The <span>physical effect can change the boiling point of a substance is the pressure.
(2) </span><span>Evaporation only occurs at the surface of a liquid. TRUE.</span><span>
(3) </span>d. freezing. The change from liquid to solid, or the reverse of melting, is called freezing.
Nesterboy [21]3 years ago
5 0

Answer 1:The correct answer is option b.

Explanation:

A boiling of the liquid is temperature at which the vapor pressure of the liquid becomes equal to the pressure exerted by the gas above it.

  • If the pressure of gas is 1 atm the liquid will boil at its normal boiling point.
  • If the pressure of the gas is less than that of the 1 atm than the liquid will boil at temperature lower than its normal boiling point.
  • If the pressure of the gas is more than 1 atm than the liquid will boil at temperature higher than its normal boiling point.

Evaporation is defined as surface process where water molecules from liquid state are converted into gaseous state from the surface of the liquid.

Answer 2:The correct answer is option d.

Explanation:

Freezing: It is a process in which liquid state of matter is converted into solid state of the matter.

Liquid state → Solid state

Condensation :The change of state of matter from gaseous state to liquid state is termed a condensation.

Boiling: It is a process by which a liquid is turned into a vapors by providing heat to the liquid.

Sublimation:The change of state of matter from solid state to gaseous state by escaping liquid state  is termed a sublimation.

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4) What is the IUPAC name of this compound?
zheka24 [161]

Answer:

1,3- dichlorobutane

Explanation:

The IUPAC name of given compound is 1,3- dichlorobutane.

First of all we will select the longest chain.

The given compound is straight chain. So the compound have four carbon atoms means parent name will butane.

Then we will see the position of functional group. Gives the lowest possible number to the functional group attached.

In given compound one chlorine atom is attached on left side and other is on right side. we will start the numbering from left because in this way chlorine will get lowest possible number which 1 and 3.

As we start the numbering from left the one chlorine atom get number one and other is attached on carbon 3 will have number 3.

There are two chlorine atoms so we will give name "dichloro"

The name will be,

⁴CH₃-³CHCl-²CH₂-¹CH₂Cl

1,3- dichlorobutane.

8 0
3 years ago
How many reactants are there?
Nostrana [21]

Answer:

i think there would be 5!

Explanation:

brainliest pls and God bless you!!:)

5 0
2 years ago
Read 2 more answers
What is the solubility of argon (in units of grams per liter) in water at 25 °C, when the Ar gas over the solution has a partial
beks73 [17]

Answer:

0.02405 g/L is the solubility of argon  in water at 25 °C.

Explanation:

Henry's law states that the amount of gas dissolved or molar solubility of gas is directly proportional to the partial pressure of the liquid.

To calculate the molar solubility, we use the equation given by Henry's law, which is:

C_{Ar}=K_H\times p_{gas}

where,

K_H = Henry's constant = 1.40\times 10^{-3}mol/L.atm

p_{Ar} = partial pressure of carbonated drink = 0.51atm

Putting values in above equation, we get:

C_{Ar}=1.40\times 10^{-3}mol/L.atm\times 0.430 atm\\\\C_{Ar}=6.02\times 10^{-4}mol/L

Molar mass of argon = 39.95 g/mol

Solubility of the argon gas :

6.02\times 10^{-4}mol/L\times 39.95 g/mol=0.02405 g/L

0.02405 g/L is the solubility of argon  in water at 25 °C.

5 0
3 years ago
What is the answer of number 3
Butoxors [25]

Answer:

TRUE!!!

Explanation:

The transfer of thermal energy is called heat. Therefore, a heating system is a system for the transfer of thermal energy. Regardless of the type of heating system in a home, the basic function is the same: to produce thermal energy and transfer it to air throughout the house.

5 0
2 years ago
Read 2 more answers
Gustave-Gaspard Coriolanus described this type of energy
Paha777 [63]
I believe it’s Chemical energy but please correct me if i’m wrong
8 0
3 years ago
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