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Guide to Propulsion
Reaction of Gases Activity
so instructed by your teacher, print out a worksheet page for these
- In this Activity
you will be using the
Beginner's Guide to Propulsion and the Animated
Gas Lab to complete the worksheet.
- The Animated
Gas Lab is used to illustrate the variation of the gas properties
(pressure, temperature, mass, and volume). In the lab a theoretical
gas is confined in a blue container.
- The volume
of the gas is shown in yellow and is determined by the position
of a red piston. The volume can be changed by moving the red piston
using the red screw at the top of the piston.
- The number
of moles of the gas is indicated by the number of small black
"molecules" in the volume. The number of moles can be changed
by injecting or withdrawing molecules using the pump at the left.
- There are
two probes inserted into the bottom of the container to measure
the pressure and the temperature. The pressure can be changed
by adding or removing green weights from the top of the red piston,
and the temperature can be changed by heating the container with
the "torch" at the bottom.
Answer the following
- Give one effect
that the compressibility of air has on an object moving through it.
- In the Animated
Gas Lab, what happens to the volume of a gas when you freeze mass
and pressure and increase the temperature? Why does this happen?
- When temperature
and mass remain constant, what will happen to the pressure when the
volume of a gas is decreased? Why?
- Why does an increase
in the mass of a gas increase the volume of that gas within the chamber?
(Temperature and pressure remain constant in this example.)
- When pressure
increases, which variables should remain constant in order to observe
an increase in temperature?
- Explain "Charles
and Gay-Lussac's Law."
- Following this
thinking, if the volume of a given mass of gas is 5 cubic meters,
what is the temperature?
- Which properties
depend on the amount of gas in the sample?
- Which formula
helps us find the "specific volume" of a gas?
- Which property
of a gas causes pressure within a container?
Propulsion Activity Index