Thermodynamics Test 2024

In a cyclic process, the system's initial status is ________ compared to the final status.

• equal in energy

• greater in energy

• lower in energy

Compare ice to water vapor. Which would have a greater value of entropy?

• Ice

• Water vapor

• Their entropy values would be the same.

A cube of ice is placed in boiling water. When thermal equilibrium is reached, which has the greater temperature?

• Ice

• Water

• They reach the same temperature.

• 4180 J

• 8360 J

• 16270 J

• 20000 J

Which statement is true about the ENTROPY?

• Entropy refers to disorder, the unusable energy that escapes a system.

• Entropy refers to the balance of temperature among two or more systems.
• Entropy refers to the average kinetic energy of the molecules.
• Entropy refers to the inability to destroy or create energy. 

Heat travels from the sun to the earth by the process of...

• conduction
• convection
• radiation
• insulation

A substance with a high specific heat...

• is always extremely hot.

• requires a large amount of energy to change temperature.

• does not heat up.

• does not require a lot of energy to change temperature.

Thermal energy always moves -

• From a high temperature object to a lower temperature object.
• From a lower temperature object to a higher temperature object.
• From an object with lower kinetic energy to an object with higher kinetic energy.
• From an object of higher mass to an object of lower mass.

In this method of heat transfer heat is carried by a moving medium, like water or air.

• Conduction
• Convection
• Radiation
• this is impossible

The transfer of thermal energy between objects of different temperatures is called...

• temperature
• heat
• internal energy
• none of these