The Law of Conservation: Crash Course Engineering #7

The video explores the concept of a magical box to illustrate the Law of Conservation, explaining how matter and energy cannot be created or destroyed. It introduces systems and processes, using a cake baking analogy to explain conversion, yield, and byproducts. The video then applies these concepts to steelmaking, discussing accumulation, generation, and consumption. Finally, it offers strategies for improving system efficiency, including recycling and handling contaminants, emphasizing the importance of engineering problem-solving.

What fundamental principle helps engineers optimize the efficiency of a system?

• Law of Motion

• Law of Conservation

• Law of Thermodynamics

• Law of Gravity

In a steady state system, what remains constant?

• The color of the system

• The pressure

• The temperature

• The input and output variables

What term describes the amount of initial input used in a process?

• Output

• Efficiency

• Conversion

• Yield

If a system has a 60% conversion rate, what does it mean?

• 60% of the output is recycled

• 60% of the system is efficient

• 60% of the input is wasted

• 60% of the input is converted to output

What is the term for the difference between input and output in a system?

• Steady State

• Consumption

• Generation

• Accumulation

How can engineers handle contaminants in a recycling system?

• By ignoring them

• By using a purge system

• By increasing input

• By reducing output

What additional terms are needed to calculate accumulation in systems with chemical reactions?

• Speed and Velocity

• Generation and Consumption

• Volume and Density

• Pressure and Temperature