• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Research question: Does the temperature of water affect its rate of evaporation? Assuming that water is kept in the same container.

Extracts from this document...


Lab Report: Rate of Evaporation

Research question:

Does the temperature of water affect its rate of evaporation? Assuming that water is kept in the same container.


Water is one of the most important element for life to exist. We need water everyday in order to survive. Water is also known as H2O in its chemistry form, there are three phases in which water can stay: solid, liquid and gaseous state. It is common knowledge that below 0˚C, water will freeze, at 100˚C it will boil, and from 0 to 100˚C, it will remain its liquid state. Although when liquid water is kept at constant temperature it seems like it is not changing, the water is actually evaporating slowly. If a glass of water was left out for long enough, after some time the water will have completely evaporated.

...read more.


The shape of the container; The material of the container The surface area or the water.

Uncontrollable variables:

  • When water stays at a stable temperature.
  • Airflow in the room
  • Room temperature is not completely kept constant.

There will be errors because we measure the water temperature after heated by the heater. Measurements might be taken too early while the water is still being heated and temperature is still rising. That way the results will not be accurate. In order to reduce that error, temperature of the water will be only taken when the reading on the thermometer to 1 decimal place does not change in 5 minutes.

Airflow in the room cannot be completely controlled, we try to reduce this error by setting the experiment away from doors and windows and by turning off the air conditioner during the process of the experiment.

...read more.


Then the heater will be turned on and put at 20˚C, the second measurements will be taken once the water temperature becomes stable. Again, the temperature of water and the time taken for 20ml of water to evaporate will be recorded. After that, the heater will be turned 5˚C higher, at 25˚C. And the same procedure will be repeated at 30˚C, 35˚C, 40˚C, 45˚C, 50˚C, 55˚C, 60˚C (10 different temperature measurements altogether). This experiment will be repeated 3 times.

In this experiment there are some risks of getting burned by the heater towards the last measurements if the experiment is not done carefully. There are no other risks or dangers of procedure.

The range independent variable (temperature change) is according to the heater. The heater’s temperature will be raised by 5˚C for each measurements. As the procedure is repeated 10 times, the range temperature or the heater will change by 50˚C.

...read more.

This student written piece of work is one of many that can be found in our International Baccalaureate Physics section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related International Baccalaureate Physics essays

  1. Free essay

    Charles Law Research Question: Investigate the relationship between the length of a column of ...

    � 0.1cm Percentage Error 21 3.3 3.03% 31 3.4 2.90% 41 3.5 2.90% 51 3.7 2.70% 61 3.9 2.60% 71 4.1 2.40% 81 4.4 2.30% 91 4.9 2.04% 101 5.6 1.80% Percentage Error: However, we must also consider the uncertainties in the calculations, indefinitely the percentage error of average length of column of air: {[(a/L1)

  2. How does the number of holes in a plastic cup affect the time it ...

    each time. This is measured with a 250 mL (� 2 mL) graduated cylinder. Another control of this experiment would be having the same person timing the experiment for every trial. Another control would be puncturing the same size hole at the bottom of the cup throughout the trials.

  1. Telescopes - science research project.

    There are some advanced next generations advanced telescopes such as TMT and E-ELT. There specifications are little explained with the comparison to both generations.[7][8] Figure 3:Gran Telescopio Canarias Thirty Meter Telescope (TMT): Thirty Meter Telescope (TMT) is considered as it will be the world's tops advanced and proficient ground-focused mid-infrared, near-infrared and optical telescope.

  2. Aim a) To verify that the pressure of a gas varies linearly with its ...

    Figure 2.Pressure vs.Temperature and absolute zero y=0.003x+0.7625 The relationship between pressure of fix mass of a gas with temperature is in a linear and go through the point -254.2 ºC. Conclusion and Evaluation In this experiment, we aim to investigate the relationship between the pressure of a gas and the temperature of it as the volume of gas is constant.

  1. HL Physics Revision Notes

    For short half-lives, the half life can usually be measured directly. For longer half lifes, values of activity can be measured and the decay law can be used to calculate λ and thus t½. Measure the activity A and chemically find the number of atoms of the isotope.

  2. How does the sinkage depth of a tyre affect its rolling resistance ?

    Crr or the rolling resistance force for a pneuamatic tire can be defined by the equation ( Hibbeler, R.C. 2007) Crr = The experimental rolling resistance is defined in the equation below Fr = N x b / r - 1)

  1. The purpose of this lab is to prove the discovery of George Ohm, that ...

    V 4.5 V 0 mA 2.5 ± .5 mA 3.5 ± .5 mA 5.0 ± .5 mA 7.0 ± .5 mA 600 Ω Parallel 0 V 1.5 V 2.2 V 3.0 V 4.5 V 0 mA 25.0 ± 1 mA 37.0 ± 1 mA 50.0 ± 1 mA 73.5 ±

  2. Science Research Project - The Forces in Avalanches

    Constant velocity starts when F equals R. This condition occurs after the starting zone all the way to the botton of the avalanche path. This zone is usually called the track. In fact, the velocity even here changes due to the entering of new snow, deposition and topographic irregulaties but just slightly.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work