Prandtl Number Is the Ratio of

question 66

Multiple Choice

Prandtl number is the ratio of

• A)Mass diffusivity to thermal diffusivity
• B)Momentum diffusivity to thermal diffusivity
• C)Thermal diffusivity to mass diffusivity
• D)Thermal diffusivity to momentum diffusivity

---

Definitions:

Reciprocity Principle

The social norm that suggests that people should return a favor or action with another equivalent favor or action.

Search-And-Rescue

Operations or missions tasked with locating and providing aid to people who are in distress or imminent danger.

True Altruism

The act of helping others without expecting any benefits in return, purely driven by the desire to benefit someone else.

Reciprocity Principle

A social norm suggesting that people should return the favor or kindness that others have shown to them.