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
Artist 52 [7]
1 year ago
11

The ΔH°f of gaseous dimethyl ether (CH₃OCH₃) is -185.4 kJ/mol; the vapor pressure is 1.00 atm at -23.7°C and 0.526 atm at -37.8°

C. (b) Calculate ΔH°f of liquid dimethyl ether.
Chemistry
1 answer:
My name is Ann [436]1 year ago
5 0

The ΔH°f of liquid dimethyl ether is  + 975.204 kJ/mol.

The standard enthalpy of formation is a measure of the power launched or consumed when one mole of a substance is created below general situations from its pure elements. The symbol of the usual enthalpy of formation is ΔH f.

Enthalpies of formation assist us are expecting response enthalpies for plenty of reactions if the products and reactants are properly-studied, even though the precise response is new. To do this, we consider that we take the reactants and separate them into their natural elements in a widespread country.

ΔH product - ΔH reactant = Cp ( T₂ - T₁)

ΔH°f of liquid  -  ΔH°f of gaseous = 0.526 atm( -37.8°C) - ( -23.7°C)

ΔH°f of liquid = ΔH°f of gaseous *  0.526 * -10

                    =   -185.4 kJ/mol * -5.26    

                    = + 975.204 kJ/mol

Hence, ΔH°f of liquid dimethyl ether is  + 975.204 kJ/mol.

Learn more about dimethyl ether here:-brainly.com/question/23537178

#SPJ4

You might be interested in
If the fugacity of a pure component at the conditions of an ideal solution is 40 bar and its mole fraction is 0.4, what is its f
yaroslaw [1]

Answer : The fugacity in the solution is, 16 bar.

Explanation : Given,

Fugacity of a pure component = 40 bar

Mole fraction of component  = 0.4

Lewis-Randall rule : It states that in an ideal solution, the fugacity of a component is directly proportional to the mole fraction of the component in the solution.

Now we have to calculate the fugacity in the solution.

Formula used :

f_i=X_i\times f_i^o

where,

f_i = fugacity in the solution

f_i^o = fugacity of a pure component

X_1 = mole fraction of component

Now put all the give values in the above formula, we get:

f_i=0.4\times 40\text{ bar}

f_i=16\text{ bar}

Therefore, the fugacity in the solution is, 16 bar.

4 0
3 years ago
The smallest unit of an element that maintains properties of that element is called a(n)
Mazyrski [523]

Answer:

try c atom i hope this helps!! : )

Explanation:

7 0
3 years ago
What is the name of Se2Cl7?
Monica [59]

Answer:

diselenium heptachloride

Explanation:

Se2Cl7

Se = selenium

Cl = chlorine

Don't forget the "-ide"

Diselenium heptachloride

4 0
3 years ago
Which equation shows how to solve for enthalpy of solution based on the information in tables?​
Tatiana [17]

Answer: B. triH sol Mgl2= -triHlat+ triHhydr Mg^2+ 2triHhydr^l-

Explanation:

Just did it and it was right

8 0
3 years ago
How is it possible for helium to have 8 spectral lines when it only has 2 electrons?
neonofarm [45]

It has more lines in it compared to hydrogen emission spectrum. It is mainly because the helium atom has more electrons than a hydrogen atom. Therefore, more electrons get excited when we pass a white light beam through a helium sample, and it causes the emission of more spectral lines

5 0
3 years ago
Other questions:
  • Which condition may cause farsightedness?
    7·2 answers
  • Consider the following chemical equation: NH4NO3(s)⟶NH+4(aq)+NO−3(aq) What is the standard change in free energy in kJmol at 298
    7·1 answer
  • What is the hybridization of sb in the molecule sbcl52–? antimony (sb) can accept up to twelve electrons?
    10·2 answers
  • The molecular weight of water, H2O, is 18.02 g over mol. How many moles of water are in 24.3 g of water? Express the answer usin
    10·1 answer
  • What types of materials are better at absorbing energy from radiation?
    8·1 answer
  • Mention two factors which affect pressure due to liquid contained in a vessel​
    8·2 answers
  • The volume of a gas is 5.0 L, when the temperature is 5.0 degrees Celsius. If the temperature is increased to 10.0 degrees Celsi
    11·1 answer
  • Groundwater makes up most of the water on the planet True or false
    12·2 answers
  • HELP ASAP PLEASE WILL GIVE 12 points
    10·2 answers
  • Which structure is the arrow pointing to?<br><br><br><br> What is the function of this organelle?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!