stella present on reversible reaction

1. SSI 3013
INFORMATION AND
COMMUNICATION IN
SCIENCE
STELLA SOFTWARE:
REVERSIBLE REACTION
GROUP MEMBERS:
NORLIYANA BINTI A. RESHID D20131063857
AMIRAH HAKIMAH BINTI ABDUL RAHMAN D20131063867

2. INTRODUCTION…
• A Representation of an object, a
system, or an idea in some form
other than that of the entity
itself.
• Scale models, prototype plants
Modelling
• operation of a model, which is a
representation of that system
• Example: Stella
Simulation

3. APPLICATION
Designing and analyzing manufacturing systems
Evaluating a new military weapons system or tactics
Designing and operating transportation facilities
such as freeways, airports, subways, or ports
Evaluating designs for service organizations such as
hospitals, post offices, or fast-food restaurants
Determining ordering policies for an inventory
system and Analyzing financial or economic systems

4. ADVANTAGE SIMULATION
Give Student More Feeling For
Reality In Some Abstract Fields
Of Learning
Student Will Be Active
Rather Than Passive in
Class.
Saving The Cost Of
Providing The
Necessary Apparatus
in doing experiments

5. DISADVANTAGE SIMULATION
disadvantage
Higher
software cost
Cost about RM
3 K
School department
unaffordable to buy
Teacher still use
tradisional way
Additional
training
required
Need good
training to use
this software
Need time to
expert

6. WHAT IS STELLA?
stand for System Thinking for
Education and Research
offers a practical ways to
dynamically visualize and
communicate how complex the
system and ideas really work.
used to stimulate a system over
the time, jump the gap between
theory and the real world.
teach the students to look for
relationship and interaction and
also it create a clear and best
communication system input and
outputs to demonstrate the
outcomes
many topics that can we build
using STELLA

7. EXAMPLE OF USING STELLA?
EXPERIMENT: REVERSIBLE REACTION
• REVERSIBLE REACTION Is a process reversible chemical change
• In the simulation: it make we see clearly the effect that reversibility plays in the
overall dynamics of the reaction by using H2 + I2 2HI

8. Graph
Results of
reversible
reaction
Simulation 1:
combination rate constant at low and
decomposition rate constant at high (except at
high concentration of reactant and low product)
Simulation 3:
the constant rate of combination and decomposition at
low
Simulation 4:
the constant rate of combination and decomposition
at high
Simulation 2:
the constant rate of combination at high and rate of
decomposition at low

9. EXAMPLE OF USING STELLA:
Type of graph results
in reversible reaction
GRAPH 1:-
The forward reaction has its maximum
rate at the beginning of the reaction
and the rate decreases as the reaction
proceeds. The rate decreases as the
reaction proceeds. when the two rates
become equal, the system is at
equilibrium.
GRAPH 2:-
The reaction proceeds, the reactants (I2
CONCENTRATIONS) get consumed, and
the products (HI CONCENTRATION) are
created. At some point, the products
degrade back to their reactant form at the
same rate as they are being formed,
reaching an equilibrium between
formation and destruction.
GRAPH 3:-
The equilibrium between a liquid and its
vapor, the rate of vaporization is equal to
the rate of condensation. In the equilibrium
of a saturated solution with undissolved
solute, the rate of dissolution is equal to
the rate of precipitation. In the equilibrium
of a weak acid with its ions, the rate of
dissociation is equal to the rate of
recombination.

10. CONCLUSION

One of powerful
learning
experiment
Stella help student
to understand
scientific
knowledge by
testing the
hypothesis
Is suitable to apply
in schools in
Malaysia
Stella Software
recommended is
the best to use as
well because it can
improve students
motivation.