Energy can neither be created nor destroyed

Energy can neither be created nor destroyed

• A. First Law of Thermodynamics
• B. Second Law of Thermodynamics
• C. Velocity
• D. TAB

Answer: (A)

The energy conservation principle states that energy cannot be created or destroyed, only transformed or transferred. This is captured by the First Law of Thermodynamics, which means the total energy in a closed system stays the same even as it changes form (for example, chemical energy to heat or electrical energy to mechanical work) or moves between objects, with any losses accounted for to the surroundings. In NEBB CP work, this underpins energy balances: the energy entering a space (through heating, cooling, lighting, occupants) and leaving (through walls, infiltration, exhaust) should reconcile with any energy stored or generated in the space over time. This concept helps us verify system performance and ensure no energy is being created or destroyed in the process. The other options don’t describe this principle: the Second Law involves entropy and irreversible real-world processes, velocity is just speed, and TAB refers to testing and balancing procedures, not a fundamental energy principle.

The energy conservation principle states that energy cannot be created or destroyed, only transformed or transferred. This is captured by the First Law of Thermodynamics, which means the total energy in a closed system stays the same even as it changes form (for example, chemical energy to heat or electrical energy to mechanical work) or moves between objects, with any losses accounted for to the surroundings. In NEBB CP work, this underpins energy balances: the energy entering a space (through heating, cooling, lighting, occupants) and leaving (through walls, infiltration, exhaust) should reconcile with any energy stored or generated in the space over time. This concept helps us verify system performance and ensure no energy is being created or destroyed in the process. The other options don’t describe this principle: the Second Law involves entropy and irreversible real-world processes, velocity is just speed, and TAB refers to testing and balancing procedures, not a fundamental energy principle.