4 Temperature And Pressure Lab-2

Unit B: Gases Lesson 4: Temperature and Pressure Lab Stage 1: Desired Results General Outcome(s )

Students will - explain molecular behaviour, using models of the gaseous state of matter.

Specific Outcome(s )

Students will: -

-

20–B1.2s:conduct investigations into relationships among observable variables and use a broad range of tools and techniques to gather and record data and information ● perform an experiment, in which variables are identified and controlled, to illustrate gas laws 20–B1.3s: analyze data and apply mathematical and conceptual models to develop and assess possible solutions ● graph and analyze experimental data that relate pressure and temperature to gas volume

Students will​: - Conduct an experiment using a temperature probe and a gas pressure sensor to study the

Learning Objectives

relationship between temperature, volume, and pressure. -

Express in words, a table, a graph, and in a mathematical equation the relationship between gas pressure, volume, and temperature.

Stage 2: Assessment Evidence Formative Assessment

Ongoing throughout activity; gauging student interest and participation.

Summative Assessment

Lab analysis

Stage 3: Learning Experience Prior to Lesson:

Print lab doc, set up lab night before.

Resources to Bring:

Lab quest, temp probe, gas sensor, 125 mL E flask, hot plate, ice, glove, 1 L beakers.

Time: 67

Content/Description

3 mins

Introduction: - Attendance (enter into system @ the end of class). - Encourage students to collect themselves quickly as we only have 45 minutes for the lab. Review: - This week we learned about Boyle’s law and the relationship amongst volume

Notes/Materials

and pressure in addition to Charles’s law and the relationship amongst temperature and volume. Today we will be exploring a combination of those laws: the relationship amongst how temperature and pressure which will segway us into next week's lesson when we learn about the combined gas law. Experiment: ​In this simple experiment, you will use a Temperature Probe, a Gas

Pressure Sensor, and an air sample in a stoppered flask to study the relationship between gas pressure and temperature. The volume and amount of gas will be kept constant. - The results will be expressed in words, in a table, with a graph, and with a mathematical equation (just like Wednesday’s lab). - All instructions are on the lab sheet → follow them carefully and let me know if you have any questions (groups of 2 preferred). - Be careful with the technology → not cheap! -

Everyone must wear safety glasses for the duration of the experiment. We want to practice proper lab procedures. Record your data in pen but you can do your analysis in pencil.

-

Careful when you are at the boiling water station → do not burn yourself or th probe wires on the hot plate. Be sure not to immerse the probe wires in the water as well.

Procedure: -

-

2 mins

8 stations around the room → 2 of each temperature (boiling water, hot water, room temperature water, and ice water). Each group must go to all 4 stations to complete their data table. Everything must stay at each station; so you will not have a lab quest that has all your data → you must record each data pair as you make your way around stations. When you are done, move to the next available station. When you have completed the data collection, complete the analysis questions. → Refer to Boyle’s law lab for formative feedback. Hand in today’s lab for summative assessment. If you finish the analysis questions, help dismantle the labquests and pressure sensors → dump out water from beakers. Complete the Boyle’s and Charles Law practice problems. .

Conclusion: - Clean up ​→ put everything back in the corresponding boxes. - This lesson, we explored the relationship amongst temperature and pressure. - Next week we'll be combining Boyle’s Law and Charles’s law with the Combined Gas Law. ​Depending on how far we get, there will likely be a gas

→ analysis for homework.

law quiz 2nd period tuesday