Data logger, oscilloscope, signal generator and more!

DrDAQ is a versatile instrument that connects to the USB port of any PC. Using the supplied PicoScope software it can be used as an oscilloscope, spectrum analyzer and signal generator.

From just £89.00


Investigating the effect of temperature changes during a rate of reaction assessed practical

IntroductionEducational data logger

DrDAQ is used here with dual external temperature probes to compare the change in temperature of two test tubes containing bench hydrochloric acid both at 50 degrees Celsius. One is used as a control whilst 1 cm of magnesium is added to the other. This is carried out to investigate whether the exothermic nature of the reaction has a noticeable effect on the overall temperature of the reaction and hence effects the fair testing of the reaction. This approach can be used to gain high marks in the evaluation section of GCSE science coursework.

Equipment required

  • DrDAQ data logger connected to a PC
  • Two external temperature probes (DD100)
  • 1 M hydrochloric acid
  • 1 cm lengths of magnesium ribbon
  • Two boiling tubes
  • Electric water bath or large beaker filled with water at 50 degrees Celsius
  • 25 cm3 measuring cylinder or 25 cm3 pipette

Experiment setup

  • Measure out two lots of 20 cm3 hydrochloric acid and place in two test tubes
  • Heat the hydrochloric acid to 50 °C in a water bath
  • Monitor the temperature in both test tubes using the DrDAQ
  • Add 1 cm of magnesium to one of the test tubes
  • Monitor how the temperature changes in both test tubes
Experiment set up

Figure 1: picture showing the set up of the experiment

Carrying out the experiment

Both test tubes need to be kept in the same environment for the experiment to be fair. The data collection should continue for as long as the temperature keeps changing.

Questions and discussion of results

  • Did the magnesium reacting effect the temperature of the reaction?
  • Would an increase in temperature matter as long as all the experiments went up by the same amount?
  • How much did the magnesium reacting increase the temperature?
  • How will this effect the design of the fair test for the reaction?

Further study

  • How does the temperature of the reaction change if the acid concentration is lowered and the reaction takes longer.
  • Is the temperature change always the same irrespective of length taken to react?


  • I have been using my 4224 PicoScope for years. I travel abroad so this has been ideal due to its physical size. Storage of waveforms on my Laptop is very easy allowing me to quickly email waveforms to my Colleagues.

  • Not many USB scopes works on Win & Mac & Linux too, so that proves me that guys from Pico really cares about us, customers. This made my decision much easier when I was looking to buy an USB scope.

    Raul Trifan
  • We have been using Picoscope 6404D for quite some time, and are amazed by its accuracy and powerful emulations while working with numerous signal evaluations.

    J Mohanty
  • PicoLog TC-08: This is a very nice unit that works consistently and reliably.

    Jeff Hulett
  • It is a great scope. I had a weird problem - it did not work on one of my PC’s. Customer service gave me first class service. If I could give 6 stars for customer service - I would do so.

    Niels Larsen
  • Perfect Partner for Development of Encoder controlled Stepper Motor Actuators. Since the included software is really stable, this type of device is a great tool for great tasks!

    Helmut Schoettner
  • A superb piece of equipment worth its weight in gold

    Nigel Clinch
  • So simple to use & beats any other I have ever used hands down.

    John D Samsing
  • Great functionality in a compact size. I really like moving the mouse pointer to a position and having the Time and Voltage display the values at that point. Calibration equipment is a breeze with that feature.

    Don Horein

PC oscilloscope and data logger products

Tel: +1 800 591 2796 (Toll Free)