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Explain in terms of particles why energy must be given to a liquid if it is to be changed to a gas?
To change a liquid into a gas, the particles in the liquid must overcome the attractive forces holding them together to become a gas where the particles are more spread out and have higher energy. This requires energy input to break these intermolecular forces and increase the kinetic energy of the particles to transition from the liquid phase to the gaseous phase.
What kind of energy is generated when atoms cause heat?
The energy which is released when atoms cause heat is thermal energy.
How is the temperature of a substance related to the energy of movement of the particles of a substance?
It is hard to exactly define temperature in terms of such things - but roughly speaking, the temperature is the average kinetic energy (energy of movement) per particle, per degree of freedom.
How many kilocalories of heat does an expenditure of 551 kJ produce?
Relative to liquids and gasses, they have the least amount of energy. In terms of the actual particles themselves, the amount of energy they possess depends on their structure and composition along with the temperature.
Heating a solid makes it melt terms of particles?
The particles are moving away from one another during melting.
Describing the terms of the movement and the energies of the water particles what happens to evaporation?
Evaporation explanation is that the kinetic energy of molecules at the surface allows some molecules to escape in the atmosphere.
What is heat energy How is it different from temperature?
Heat energy is the total kinetic energy of particles within a substance. Temperature, on the other hand, is a measure of the average kinetic energy of particles in a substance. In simpler terms, heat energy is the total movement of particles, while temperature is the average speed of those particles.
Does solid particles have lots of energy?
Relative to liquids and gasses, they have the least amount of energy. In terms of the actual particles themselves, the amount of energy they possess depends on their structure and composition along with the temperature.
What happens to water molecules as ice melts in terms of kinetic molecular thery?
As ice melts, the water molecules gain kinetic energy, causing them to vibrate more rapidly and break free from the rigid crystalline structure of the solid ice. This increases the molecular motion and allows the water molecules to move more freely, transitioning from a solid to a liquid state.
What is the difference between thermal energy and internal energy?
Thermal energy refers to the total kinetic energy of particles in a substance, while internal energy includes both the kinetic and potential energy of the particles. In simpler terms, thermal energy is the heat energy in a substance, while internal energy includes both heat and the energy stored in the bonds between particles.
What is the difference between kinetic energy and thermal energy, and how do they relate to each other in terms of their effects on the motion and temperature of particles?
Kinetic energy is the energy of motion, while thermal energy is the total energy of particles in a substance. Kinetic energy directly affects the motion of particles, while thermal energy affects the temperature of a substance. As particles move faster due to increased kinetic energy, they also gain thermal energy, leading to an increase in temperature.
Why can you you model the thermal energy of an object as the 'mechanical energy' of the particles that make it up?
Thermal energy is the kinetic energy of particles in motion, which can be modeled as the mechanical energy of the particles. This is because both types of energy involve motion and can be described in terms of position, velocity, and forces acting between the particles. Therefore, the principles of mechanics can be applied to understand and analyze the behavior of thermal energy in a system.
How is temperature defined in terms of kinetic energy?
Temperature is a measure of the average kinetic energy of the particles in a substance. The higher the temperature, the greater the kinetic energy as particles move faster and have more energy. Conversely, lower temperatures correspond to lower kinetic energy levels.
What is the difference between thermal energy and temperature?
Thermal energy is the total energy of all the particles in an object, while temperature is a measure of the average kinetic energy of those particles. In simpler terms, thermal energy is the total amount of energy in an object, while temperature is a measure of how hot or cold it is.
What is heat and temperature in the terms of the particle theory?
Heat is the energy transferred between particles due to a temperature difference, causing particles to vibrate faster. Temperature is a measure of the average kinetic energy of particles in a substance, determining how hot or cold the substance is.
What's the difference between thermal energy and temperature?
Thermal energy is the total energy of all the particles in an object, while temperature is a measure of the average kinetic energy of those particles. In simpler terms, thermal energy is the total amount of energy in an object, while temperature is a measure of how hot or cold it is.
What happens in terms of energy during photosynthesis?
Energy is used to create glucose, oxygen, and water from carbon dioxide and water.
