it can be implied that heat added to the system is equal to work done by the system

internal energy of the system fluctuates and there exists an imbalance between work and heat

a constant amount of heat is added to the system

temperature is not affected by the internal energy of the system, work, or heat

temperature is not affected by the pressure or volume changes of the system

After falling down the hill, a ball's kinetic energy plus heat energy equals the initial potential energy

If a refrigerator is unplugged, eventually everything inside of it will return to room temperature

While melting, an ice cube remains at the same temperature

The specific heat of an object explains how easily it changes temperatures

Two systems in equilibrium with a third system are in equilibrium with each other