Which expands more when the temperature is lowered equal volumes of?
Homework 7
| Question | Answer |
|---|---|
| Which of the following expands most when the temperature is lowered? Equal volumes of iron, wood, helium, or water at 4 degrees C? | Water at 4 degrees C |
| During a very cold winter, water pipes sometimes burst because | Water expands when freezing |
| When an iron ring is heated, the hole becomes | Larger |
Which expands more when the temperature is increased?
In general, liquids will expand more than solids with an equal increase in temperature. Similarly, in general, gases will expand more than liquids with an equal increase in temperature. Solids also expand, but not as much as liquids or gases because their particles are fixed in position.
Which of the following forms of energy is most closely related to temperature?
Thermal energy and temperature are closely related. Both reflect the kinetic energy of moving particles of matter. However, temperature is the average kinetic energy of particles of matter, whereas thermal energy is the total kinetic energy of particles of matter.
At what temperature do the combined effects of contraction and expansion produce the smallest volume of liquid water?
At what temperature do the combined effects of contraction and expansion produce the smallest volume for water? 4 degrees.
What contracts the most when the temperature is decreased?
CLASS NOTES. Most substances expand as their temperature is increased and contract as the temperature is decreased. The amount a substance expands/contracts with a change in temperature is proportional to the coefficient of expansion for that material.
What is meant by translational kinetic energy?
n. (General Physics) the energy of motion of a body, equal to the work it would do if it were brought to rest. The translational kinetic energy depends on motion through space, and for a rigid body of constant mass is equal to the product of half the mass times the square of the speed.
What expands equally on equal rise in temperature?
All gases expand equally for equal rise in temperature.
Which generally expands more for an equal increase in temperature solids or liquids and why is ice less dense than water?
Liquids generally expand more than solids. When the temperature of ice-cold water is increased slightly, does it undergo a net expansion or a net contraction? Why is ice less dense than water? Ice crystallizes with an open structure, and the gaps that form between the water molecules in ice increase its volume.
What is kinetic and thermal energy?
Thermal energy comes from a substance whose molecules and atoms are vibrating faster due to a rise in temperature. Heat energy is another name for thermal energy. Kinetic energy is the energy of a moving object. As thermal energy comes from moving particles, it is a form of kinetic energy.
Which of the following is most closely related to kinetic energy of molecules?
Final Answer: The average kinetic energy of the particles of a gas is most closely associated with (B) temperature.
Why do substances expand when their temperature is increased?
Substances expand when their temperature increases because the molecules have more energy and move faster and farther apart.
What are cold contracts?
Most materials contract on cooling. The notable exception to the rule are some phase transitions and water. But even ice contracts on cooling. Water expands on cooling only between 0∘C and 4∘C (including phase transition).
What is contraction with temperature?
Thermal contraction is a decrease in a material's volume when its temperature decreases. As the temperature decreases, the average kinetic energy of the particles decreases and they slow down and get closer together thereby decreasing the volume of the material.
What is translational kinetic energy vs rotational kinetic energy?
The only difference between rotational and translational kinetic energy is that translational is straight line motion while rotational is not. An example of both kinetic and translational kinetic energy is found in a bike tire while being ridden down a bike path.
Which generally expands more for an equal increase in temperature solids or liquids quizlet?
The two metals expand at different rates. Which generally expands more for an equal increase in temperature: solids or liquids? Liquids generally expand more than solids.
Which of the following will expand the most for same rise in temperature D All will expand same a Aluminium C Wood B glass?
(c) Gas will expand more as the inter-molecular force of attraction in gas molecules is least and K.E. is maximum.
Which expands the greatest when heated to the same temperature?
Gases Answer :Gas. explanation: Gases expand much more than the liquids and the solids. The greater the attraction between the molecules, the smaller the expansion will be.
Which expands most for increase in temperature solids liquids or gases Why?
When the temperature of a substance is increased, its molecules jiggle faster and normally tend to move farther apart. This results in an expansion of the substance. Gases generally expand or contract much more than liquids. Liquids generally expand or contract more than solids.
What happens to kinetic energy when temperature increases?
When the temperature of an object increases, the average kinetic energy of its particles increases. When the average kinetic energy of its particles increases, the object's thermal energy increases. Therefore, the thermal energy of an object increases as its temperature increases.
What happens when thermal energy of a substance increases?
When thermal energy is added to a substance, its temperature increases, which can change its state from solid to liquid (melting), liquid to gas (vaporization), or solid to gas (sublimation).
What happens to gas molecules as the pressure is increased while the temperature and volume of the container remain constant according to kinetic-molecular theory?
If the temperature is increased, the average speed and kinetic energy of the gas molecules increase. If the volume is held constant, the increased speed of the gas molecules results in more frequent and more forceful collisions with the walls of the container, therefore increasing the pressure (Figure 1).
When the temperature of a gas is increased within a closed container pressure increases due to?
An increase in temperature is by definition is an increase in kinetic energy. The increase in kinetic energy will cause the molecules of the gas to move more rapidly. As the molecules move more rapidly they collide with each other more violently. These collisions will cause an increase in pressure.
Which expands the greatest when heated at the same temperature?
Gases Answer :Gas. explanation: Gases expand much more than the liquids and the solids. The greater the attraction between the molecules, the smaller the expansion will be.
Which contracts most when cooled?
Most materials contract on cooling. The notable exception to the rule are some phase transitions and water. But even ice contracts on cooling. Water expands on cooling only between 0∘C and 4∘C (including phase transition).
Does cold contract or expand?
When it is cold the kinetic energy decreases, so the atoms take up less space and the material contracts. Some metals expand more than others due to differences in the forces between the atoms / molecules.
What is thermal contraction example?
Examples of thermal contraction include (1) snapping of taut power lines during winter; (2) deflation of balloon when placed in ice-cold water; and (3) breakage of an initially hot glass placed under cold running water.
What’s translational kinetic energy?
n. (General Physics) the energy of motion of a body, equal to the work it would do if it were brought to rest. The translational kinetic energy depends on motion through space, and for a rigid body of constant mass is equal to the product of half the mass times the square of the speed.
What is mean translational kinetic energy?
The translational kinetic energy of an object (rigid body) of a given mass is the work required to accelerate it from rest to a given velocity. The word translational refers to motion along a linear path, from one point to another.
Which generally experience more for an equal increase in temperature solids or liquids?
Which generally expands more for an equal increase in temperature: solids or liquids? Liquids generally expand more than solids.
Which of the following will expand more when heated to the same temperature?
Gas (c) Gas will expand more as the inter-molecular force of attraction in gas molecules is least and K.E. is maximum.