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
lukranit [14]
4 years ago
13

Which of the following does NOT involve a change of state? a. pouring water into a vacuum-insulated bottle b. sublimation of dry

ice c. freezing water d. vaporization of alcohol e. melting ice
Chemistry
1 answer:
Elena L [17]4 years ago
6 0
<h2> The correct option is (a).</h2>

Explanation:

  • There is no change of state in pouring water into a vacuum insulated bottle as the vacuum created inside the bottle only reduces the time limit for the transfer of heat by conduction and convection.
  • It helps the content filled in the bottle to be hot and cool for a longer time.

Hence, option (a) is correct.

Rest of the options (b), (c), (d), (e) is not correct because of the following reasons:

  • In the sublimation of dry ice, the dry ice (solid-state) is changed to the vapour form.
  • In the freezing of water, the liquid state is changed to solid-state.
  • During the vaporization of alcohol, the liquid state is changed to the vapour form.
  • During the melting of ice, the solid-state is changed to the liquid state.

You might be interested in
In redox half-reactions, a more positive standard reduction potential means I. the oxidized form has a higher affinity for elect
qwelly [4]

Answer:

The 1st and 4th options are correct

I.the oxidized form has a higher affinity for electrons

IV. the greater the tendency for the oxidized form to accept electrons

Explanation:

Half reaction can be described as the oxidation or reduction reaction in a redox reaction.it is In the redox rection there is a change in the oxidation states of Chemical species involved. the oxidized form in the redox has a higher affinity for electrons and the greater the tendency for the oxidized form to accept electrons.

Standard reduction potential which is also referred to as standard cell potential can be described as the potential difference that exist between cathode and anode of the cell. In the standard reduction potential most times the species will be reduced which is usually analysed in a reduction half reaction.

(Standard Hydrogen Electrode) is utilized when determining the Standard reduction or potentials of a chemical specie. this is because of Hydrogen having zero reduction and oxidation potentials, as a result of this a measured potential of any species is compared with that of Hydrogen, the difference helps to know the potential reduction of that particular specie.

4 0
4 years ago
In an electron dot diagram what is the maximum number of dot surrounding a symbol. A. 8 B.4 C. 2 D.10
Ksju [112]

Answer:

A. 8

Explanation:

8 valence electrons means you have a full shell.

4 0
4 years ago
An electric kettle draws a current of 6.50 A while it is plugged into a 120-V
Umnica [9.8K]

Answer:

780 watts

Explanation:

formula to find power when given amps and voltage

P = A x V

=6.50a x 120V

= 780 W (watts)

7 0
3 years ago
Why is it important for the circulatory system to help your cells
laiz [17]

Answer:

to provide energy to the body and helps u grow stonger

Explanation:

5 0
3 years ago
Question 6 of 10
Ratling [72]
B reactant +product+reactant+Product
3 0
2 years ago
Other questions:
  • Which of the following is true for balancing equations? A. The number of products should be equal to the number of reactants. B.
    9·2 answers
  • According to the Rutherford model of the atom, positive charge is where?
    11·2 answers
  • Volume is the quantity of two-dimensional space occupied by a liquid, solid, or gas.
    14·2 answers
  • What are Storm clouds? how are they different from other types of clouds?
    11·2 answers
  • Balance the following redox equation, identifying the element oxidized and the element reduced. Show all of the work used to sol
    13·1 answer
  • How many grams of oxygen are required to react with 12.0 grams of octane in the combustion of octane in gasoline?
    13·1 answer
  • When objects move farther apart from one another, the gravitational force
    11·1 answer
  • Given the following at 25C calculate delta Hf for HCN (g) at 25C. 2NH3 (g) +3O2 (g) + 2CH4 (g) ---&gt; 2HCN (g) + 6H2O (g) delta
    8·1 answer
  • If I have 0.275 moles of gas at a temperature of 75 K and a pressure of 1530 mmHg, what is the volume of the gas?
    12·1 answer
  • How long does it take for 87.5 % of each isotope to decay?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!