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
Nikolay [14]
2 years ago
14

Sodium acetate spontaneously crystallizes out of a supersaturated solution upon standing or upon the addition of a seed crystal.

Which of the following is true for the thermodynamic quantities of this system for thisprocess?(a)ΔS < 0J/K, ΔH < 0 J(b)ΔS < 0J/K, ΔH > 0 J(c)ΔS > 0J/K, ΔH < 0J(d)ΔS > 0J/K, ΔH > 0J
Chemistry
1 answer:
AlekseyPX2 years ago
6 0

Answer:

Option (c) is correct.

Explanation:

According to 2nd law of thermodynamics, every spontaneous process is associated with increase in entropy (\Delta S>0).

As sodium acetate crystallizes out spontaneously therefore it is associated with \Delta S>0.

During crystallization, bond formation takes place which results evolution of heat. In other words, crystallization phenomenon is exothermic (\Delta H).

So, the given crystallization process renders the following thermodynamic quantities- \Delta S>0 J/K and \Delta H J

Option (c) is correct.

You might be interested in
Which property is an intensive, rather than an extensive, property of matter?
Drupady [299]
The correct answer is A, Volume
7 0
2 years ago
which factor would increase the carrying capacity for a white-tailed deer in an eastern temperate forest ecosystem
saveliy_v [14]
This is a guess, but I think it could be the lack of limiting factors.
4 0
3 years ago
Read 2 more answers
Label the parts of the bacterium
SVETLANKA909090 [29]

Procaryotic structural components consist of macromolecules such as DNA, RNA, proteins, polysaccharides, phospholipids, or some combination thereof. The macromolecules are made up of primary subunits such as nucleotides, amino acids and sugars (Table 1). It is the sequence in which the subunits are put together in the macromolecule, called the primary structure, that determines many of the properties that the macromolecule will have. Thus, the genetic code is determined by specific nuleotide base sequences in chromosomal DNA; the amino acid sequence in a protein determines the properties and function of the protein; and sequence of sugars in bacterial lipopolysaccharides determines unique cell wall properties for pathogens.  The primary structure of a macromolecule will drive its function, and differences within the primary structure of biological macromolecules accounts for the immense diversity of life.

4 0
3 years ago
Determine whether each melting point observation corresponds to a pure sample of a single compound or to an impure sample with m
daser333 [38]

The question is incomplete, the complete question is;

Determine whether each melting point observation corresponds to a pure sample of a single compound or to an impure sample with multiple compounds.

Experimental melting point is BELOW literature value

Experimental melting point is CLOSE to literature value

WIDE melting point range

NARROW melting point range

Answer:

narrow melting point-pure sample of a single compound

experimental melting point is close to literature value-pure sample of a single compound

wide melting point range-impure sample of multiple compounds

experimental melting point is below literature value-impure sample of multiple compounds

Explanation:

The experimental melting point of a pure single compound is sharp and extremely close to the melting point of the substance as recorded in the literature. Usually, a pure substance melts within a narrow range of temperatures.

Impure samples of multiple compounds melt over a range of temperatures. Also if the experimental melting point is well below the record in literature, then the sample is contaminated by other compounds.

4 0
3 years ago
A 15.00 L sample of Helium gas has a mass of .002 kg. What is the
Anarel [89]

Answer:

d=1.33x10^{-4}kg/L

Explanation:

Hello there!

In this case, according to the given information, it turns out possible for us to calculate the required density by knowing it is calculated by dividing mass over volume:

d=m/V

Therefore, we plug in the given kilograms and liters to obtain:

d=\frac{0.002kg}{15.00L}\\\\d=1.33x10^{-4}kg/L

Which shows the proper scientific notation.

Regards!

5 0
2 years ago
Other questions:
  • An aqueous solution of sodium chloride is best classified as a
    15·2 answers
  • When should a lab coat, safety goggles, and gloves be worn in the laboratory?
    14·2 answers
  • What is the purpose of the three R’s of resource management?
    11·2 answers
  • List some of the important biological functions of carbohydrates
    10·1 answer
  • A gas sample has a temperature of 22c with an unknown volume. The same gas has a volume of 456 mL when the temperature is 86c wi
    13·1 answer
  • A macromolecule is added at a concentration of 18 g L−1 to water at a temperature of 10°C. If the resulting osmotic pressure of
    13·1 answer
  • A _________________ is the path of energy transfer from producer to consumers.
    13·1 answer
  • A sample of polonium-210 has an initial mass of 390 milligrams (mg). If the half-life of polonium-210 is 36 days, how many mg of
    8·1 answer
  • Using a lattice structure of sodium chloride, explain why sodium chloride:
    12·2 answers
  • In a __________________ reaction, elements are not changed, just rearranged. Small amounts of energy take place.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!