Question

compare the laws about how energy flows. give an example of each.
defined\tfirst law of thermodynamics\tsecond law of thermodynamics
example\t\t

Explanation:

To solve this, we analyze the two laws of thermodynamics related to energy flow:

First Law of Thermodynamics (Law of Energy Conservation)

• Definition: Energy cannot be created or destroyed, only transformed or transferred between systems and their surroundings. For example, in a light bulb, electrical energy is transformed into light (radiant) and heat (thermal) energy. The total energy input (electrical) equals the sum of energy outputs (light + heat).

Second Law of Thermodynamics (Law of Entropy)

• Definition: Energy transfer/transformation increases the total entropy (disorder) of a closed system. In natural processes, energy flows spontaneously from higher to lower energy states (e.g., heat flows from a hot object to a cold object, not the reverse, unless work is done). For example, when ice melts in a warm room, heat flows from the room (higher temperature) to the ice (lower temperature), increasing the disorder of the system (ice + room) as the ice becomes water (more disordered than solid ice).

Answer:

Defined	First Law of Thermodynamics	Second Law of Thermodynamics
Example	A light bulb transforms electrical energy into light + heat (total energy conserved).	Ice melts in a warm room (heat flows from room to ice, increasing entropy as ice becomes water).