Question

experiment of measuring induction period of gasoline from laboratory in the university

Answer 1

Introduction:
The induction period of gasoline is an important parameter that indicates the stability of the fuel before ignition. A longer induction period reflects a more stable fuel, whereas a shorter induction period indicates a less stable fuel that may be prone to premature ignition. In this experiment, we will measure the induction period of gasoline using a laboratory setup in the university.

Materials and Equipment:
- Gasoline sample
- Glass beakers
- Stop watch
- Thermometer
- Hot plate
- Ignition source (e.g. Bunsen burner)
- Safety goggles and lab coat

Procedure:
1. Start by setting up the hot plate and placing a glass beaker containing the gasoline sample on it.
2. Heat the gasoline sample slowly and carefully, keeping an eye on the temperature with the thermometer. You can start heating at a low temperature and gradually increase it to simulate the conditions within an engine.
3. Once the gasoline reaches a specific temperature (usually around 150-200°C), observe the sample closely for any signs of ignition such as the appearance of a flame or smoke. This is the point where the induction period ends and ignition occurs.
4. Use a stop watch to measure the time elapsed from the start of heating until ignition of the gasoline sample. This time duration represents the induction period of the gasoline.
5. Repeat the experiment multiple times with different gasoline samples or under different heating conditions to ensure the accuracy and reliability of the results.

Safety Precautions:
- Wear safety goggles and lab coat to protect your eyes and skin from potential hazards.
- Handle the gasoline sample with caution as it is highly flammable.
- Use a fume hood if available to ensure proper ventilation during the experiment.
- Keep a fire extinguisher nearby in case of any unexpected ignition of the gasoline sample.

Conclusion:
By conducting this experiment, we can determine the induction period of gasoline and assess its stability before ignition. This information can be crucial for evaluating the performance and safety of the fuel in automotive engines.