Which of the following is true about the use of LP Gas in classroom demonstrations?

The use of LP Gas in classroom demonstrations is limited to a maximum water capacity of 5 lbs because this safety regulation helps ensure that the risks associated with handling and demonstrating LP Gas are minimized. By restricting the amount of gas available for demonstrations, it reduces the likelihood of accidents and enhances safety for both the demonstrators and the audience.

This limitation is particularly important in educational settings where the focus is on learning and understanding the properties of LP Gas without exposing anyone to unnecessary hazards. Keeping the amount of gas contained to a manageable level ensures that in the event of a leak or an unexpected reaction, the potential for harmful consequences is diminished.

In contrast, the other choices suggest more permissive conditions that are not consistent with safety guidelines established for educational environments dealing with flammable gases. Such guidelines prioritize the safety of individuals while still providing an opportunity to learn effectively about LP Gas.