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
kaheart [24]
2 years ago
15

Which of the following is a list of the minimum amount of data needed for determining the molar enthalpy of solution of KCl(s) i

n pure H2O(1) ? (Assume that the KCl(aq) has the same specific heat capacity as pure water and that the initial temperatures of the KCl(s) and the water are the same.)
(A) Mass of KCl(s), initial temperature of the water, and final temperature of the solution
(B) Mass of H20, initial temperature of the water, and final temperature of the solution
(C) Mass of KCl(s), mass of H20, initial temperature of the water, and final temperature of the solution
(D) Mass of KCl(s), mass of H20, initial temperature of the water, final temperature of the solution, and atmospheric pressure
Chemistry
1 answer:
Gre4nikov [31]2 years ago
3 0

Answer:

 (C) Mass of KCl(s), mass of H20, initial temperature of the water, and final temperature of the solution

Explanation:

molar enthalpy of solution of KCl(s) is heat evolved or absorbed when one mole of KCl is dissolved in water to make pure solution . The heat evolved or absorbed can be calculated by the following relation.

Q = msΔt where m is mass of solution or water , s is specific heat and Δt is change in temperature of water .

So data required is mass of water or solution , initial and final temperature of solution , specific heat of water is known .

Now to know molar heat , we require mass of solute or KCl dissolved to know heat heat absorbed or evolved by dissolution of one mole of solute .

You might be interested in
What draws water back to earth
spayn [35]

Gravity is the force that draws water back to the earth in the forms of rain, sleet and, snow.

7 0
3 years ago
Read 2 more answers
What do we call genes
qwelly [4]

Hi there so i need one more brainliest mark so if i get it right can i get brainliest please  :)

A gene is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins. However, many genes do not code for proteins. In humans, genes vary in size from a few hundred DNA bases to more than 2 million bases

4 0
2 years ago
Climate is the __________________ average weather conditions that occur in a particular region.
masya89 [10]

Explanation:

Climate is the period of time average weather condition which occurs at a place

6 0
2 years ago
Read 2 more answers
How is thermal energy transferred during conduction? Check all that apply.
Dvinal [7]

Answer:

Thermal energy is transferred between particles that are in direct contact with each other.

Thermal energy is transferred between objects of different temperatures.

Thermal energy is transferred from fast-moving particles to slow-moving particles.

Explanation:

5 0
2 years ago
What is the difference between an atom and an element?
Travka [436]

Answer:

A particular atom will have the same number of protons and electrons and most atoms have at least as many neutrons as protons. An element is a substance that is made entirely from one type of atom

Explanation:

so In simple terms an atom contains Protons and Electrons and can be found in an Element, but an element comprises of atoms which come together to form up that particular Element

4 0
3 years ago
Other questions:
  • Needed help plzzz on this chemistry homework.
    13·1 answer
  • 8. Which of the following is a method of purifying water?
    11·2 answers
  • Which statements accurately describe the polarity and electronegativity of water?
    13·1 answer
  • What is a period in chemistry
    6·1 answer
  • Consider a transition of the electron in the hydrogen atom from n=3 to n=7.
    12·1 answer
  • Molar mass of a compound containing Al3+ ion and OH- ion?
    8·1 answer
  • Here is a multiple choice I need help on:
    13·1 answer
  • Which one of the following systems has the highest entropy?
    11·1 answer
  • What are valance electrons used for?
    13·2 answers
  • What is the conjugate base of HC6H6O6-
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!