Heat energyFigure 3 Heating and Cooling Curve 1. What variables are plotted on the x and y axes of the graph? 2. What part(s) in the graph and direction of the arrow show increase in temperature? 3. How would you describe the change in the arrangement of particles as heat energy and temperature increase? 4. What parts indicate no change in temperature?, 5. If this substance is water, at what temperature would part B occur? 6. What happens to the water in part B of the heating curve (line going up)? 7. What is the state of matter (water) in part C?, 8. At what temperature would part D occur?9. What happens to the water in this part of the graph? 10. What are the two states of matter during this phase change? 11. What is the state of matter (water) in part E?. 12. What part(s) in the graph and direction of the arrow show decrease in temperature?. 13. What happens to the heat energy and matter (water) in part D as you go down from part E?, 14. What happens to the heat energy and matter (water) in part B as you go down in the cooling curve from part C (line going down)? 15. How do heat energy, kinetic energy and temperature affect the behavior of molecules in each phase change?patulong po
1. Heat energyFigure 3 Heating and Cooling Curve 1. What variables are plotted on the x and y axes of the graph? 2. What part(s) in the graph and direction of the arrow show increase in temperature? 3. How would you describe the change in the arrangement of particles as heat energy and temperature increase? 4. What parts indicate no change in temperature?, 5. If this substance is water, at what temperature would part B occur? 6. What happens to the water in part B of the heating curve (line going up)? 7. What is the state of matter (water) in part C?, 8. At what temperature would part D occur?9. What happens to the water in this part of the graph? 10. What are the two states of matter during this phase change? 11. What is the state of matter (water) in part E?. 12. What part(s) in the graph and direction of the arrow show decrease in temperature?. 13. What happens to the heat energy and matter (water) in part D as you go down from part E?, 14. What happens to the heat energy and matter (water) in part B as you go down in the cooling curve from part C (line going down)? 15. How do heat energy, kinetic energy and temperature affect the behavior of molecules in each phase change?patulong po
Answer:
1. The temperature is plotted on the x-axis and the amount of heat energy is plotted on the y-axis of the graph.
2. Part A and B show an increase in temperature.
3. As heat energy and temperature increase, the particles of the substance vibrate faster and move apart, causing an expansion in the substance.
4. Part C and D indicate no change in temperature.
5. Part B would occur at 100°C if this substance is water.
6. In part B of the heating curve, the water absorbs heat energy, causing the temperature of the water to increase.
7. The state of matter (water) in part C is steam or water vapor.
8. Part D would occur at 100°C if this substance is water.
9. In part D of the graph, the water releases heat energy, causing the temperature of the water to decrease.
10. The two states of matter during this phase change are liquid and gas.
11. The state of matter (water) in part E is ice.
12. Part D and E show a decrease in temperature.
13. In part D, the water releases heat energy and begins to condense into liquid form. In part E, the water continues to release heat energy, causing it to solidify and become ice.
14. In part B of the cooling curve, the water releases heat energy and begins to condense into liquid form.
15. Heat energy is the total energy of the substance, while kinetic energy is the energy of motion. During a phase change, the heat energy is used to break or form the bonds between molecules. As a result, the kinetic energy of the molecules does not change, but the behavior of the molecules changes as they move from one state of matter to another. Temperature affects the behavior of molecules by determining the rate of movement or kinetic energy of the molecules.
Explanation:
2. At part A, the substance exists in a solid state. Matter in this state is described to have a definite (1)_ and (2) Heat energy is (3) causing the molecules of the substance to move more quickly as indicated in temperature. At part B, the temperature of the substance is The (6) starts to turn to liquid. At part C, the substance is state. Substance in this state is described to have more kinetic energy of its particles as the result of (9)_ in between vibrations as (10) is continuously absorbed. Changing of matter from liquid to gas is observed in part D. Here, the substance has reached the (11)_ allowing the change of its state from (12) point The molecules are already (14). by an (4). (5) finally in its (7). (8) constant temperature of (15) to (13) from each other while experiencing the At part E, the substance is already in its between them, compared to (16) form, having more (17)_ the molecules at part C. The molecules are said to be far apart from each other. As the gas is cooled, it (18) state. This process is called (19) position as they were in part another (20) observed in the (21) solid or freezes at part (22) heat energy and turns into its liquid The molecules are now back to their of the heating curve. Then, the liquid water is subjected to of heat energy, causing the decrease in their kinetic energy as of the molecular collisions. Liquid water changes to If the solid matter in part A is another kind of 11
SOLID STATE CHEMISTRY
At part A, the substance exists in a solid state. Matter in this state is described to have a definite
(1)shape and
(2)volume. Heat energy is
(3)absorbed causing the molecules of the substance to move more slowly as indicated in temperature.
At part B, the temperature of the substance is
(6)increasing and it starts to turn to liquid.
At part C, the substance is in a liquid state. Substance in this state is described to have more kinetic energy of its particles as the result of (9)weaker forces in between vibrations as
(10)heat energy is continuously absorbed. Changing of matter from liquid to gas is observed in part D.
Here, the substance has reached the (11)boiling point allowing the change of its state from
(12)liquid to gas. The molecules are already
(14)far apart from each other and are moving very fast by an
(4)increase in kinetic energy.
(5)Temperature finally rises in its
(7)constant temperature of
(15)as heat energy is added to
(13)increase the kinetic energy of the molecules while experiencing the force of the molecular collisions.
At part E, the substance is already in its (16)gaseous form, having more (17)kinetic energy of the molecules at part C.
The molecules are said to be far apart from each other.
As the gas is cooled, it (18)loses heat energy and turns into its liquid state.
This process is called (19)condensation.
The molecules return to their original position as they were in part (20)C, observed in the
(21)cooling curve.
The liquid water freezes at part (22)F as it loses more heat energy and turns into its solid state. The molecules are now back to their definite positions and have the least kinetic energy among the three states of matter.
If the solid matter in part A is another kind of (11)substance, the heating curve may have different shapes and the melting and boiling points will vary.
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3. At part A, the substance exists in a solid state. Matter in this state is described to have a definite (1) and (2) Heat energy is (3) causing the molecules of the substance to move more quickly as indicated in temperaturo. At part B, the temperature of the substance is The (8) starts to turn to liquid. At part C, the substance is state, Substance in this state is described to have more its particles as the result of (9) kinetic energy or in between (8) vibrations as (10) is continuously absorbed. Changing of matter from liquid to gas is observed in part D. Here, the substance has reached the (11) allowing the change of its state from (12) molecules are already (14) point The constant temperature of (15) by an (4) (5) finally in its (7) to (13) from each other while experiencing the At part E, the substance is already in its between them, compared to (16) form, having more (17) the molecules at part C. The molecules are said to be far apart from each other. As the gas is cooled, it (18) state. This process is called (19) position as they were in part C of the heating curve. Then, the liquid water is subjected to another (20) of heat energy, causing the decrease in their kinetic energy as observed in the (21) of the molecular collisions. Liquid water changes to If the solid matter in part A is another kind of solid or freezes at part (22) heat energy and turns into its liquid The molecules are now back to their
Answer:
At part A, the substance exists in a solid state. Matter in this state is described to have a definite (1) shape and (2) volume. Heat energy is (3) not enough to overcome the strong attractive forces between the molecules of the substance, causing them to vibrate in their fixed positions as indicated in temperature.
At part B, the temperature of the substance is (8) increasing and it starts to turn to liquid.
At part C, the substance is in its liquid state. Substance in this state is described to have more (9) freedom of movement among its particles as the result of (10) increased kinetic energy or in between (8) vibrations as heat is continuously absorbed.
Changing of matter from liquid to gas is observed in part D. Here, the substance has reached the (11) boiling point allowing the change of its state from liquid to gas. The molecules are already (14) far apart from each other while experiencing the (15) constant temperature of boiling point by an (4) increase in heat energy (5) finally in its (7) gaseous state, the molecules are now completely separated from each other compared to their arrangement in part C.
At part E, the substance is already in its gaseous form, having more (17) kinetic energy among the molecules than at part C. The molecules are said to be far apart from each other. As the gas is cooled, it (18) loses its kinetic energy and turns to its liquid state. This process is called (19) condensation, and the molecules return to a closer position as they were in part C of the heating curve.
Then, the liquid water is subjected to another (20) decrease of heat energy, causing the decrease in their kinetic energy as observed in the (21) decrease of the molecular collisions. Liquid water changes to (23) solid state or freezes at part (22) freezing point heat energy and turns into its solid form. The molecules are now back to their (24) fixed positions, similar to their arrangement in part A.
Explanation:
4. Direction: Analyze each of the following statements whether it describes the base fraise,and cooling curve of water. Write TRUE if the statement is correct but if it's false,change the underlined word or group of words to make the whole statement true.Write your answer on a separate sheet of paper.1. Dynamic equilibrium will only exist if the reaction is irreversible where thesubstances transition between reactants and products are at equal rates.2. At point B of the cooling curve, all the vapor is now condensed into water.3. The melting point of a solid and freezing point of a liquid is the temperaturewhere the solid and liquid phase of water co-exist at equilibrium.4. Endothermic happens if the liquid water begins to drop and continue to decreaseas it releases more energy until it reaches its freezing point ( 0°C).5. Plateaus are significant in the heating and boiling curve because it shows wherea phase change occurs.
Answer:
1. T2. F3. T4. T5. T"keep on learning"