Quiz sull'energia interna e il calore

What does the internal energy of a system represent?

• Total energy associated with atoms and molecules

• Thermal energy of the system

• Kinetic energy of the system as a whole

• Potential energy between molecules

What does the internal energy of a system include?

• Kinetic energy of translation and rotation

• Potential energy between molecules and kinetic energy of molecular motion

• Kinetic energy of the system as a whole and thermal energy

• Thermal energy and binding energy

What does bond energy represent?

• Thermal energy of the system

• Kinetic energy of translation and rotation

• Kinetic energy of the system as a whole

• Potential energy between molecules

When can a change in internal energy occur without a change in temperature?

• During the formation of ice or the condensation of steam

• Only when the system is thermally isolated

• Only when the system is in thermal equilibrium

• Only when the system is at constant pressure

How is heat defined in scientific terms?

• Potential energy between the molecules of a system

• Total thermal energy of a system

• Energy transferred between a system and its surroundings at different temperatures

• Total kinetic energy of a system