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This item is concerned with applying ideal gas equations to physical systems and knowing when they can be applied and when they start to fail.

(Male, S. (2012) Engineering Thresholds: An Approach to Curriculum Renewal: Guide for Engineering Educators on Curriculum Renewal using Threshold Concepts 2012. An outcome report of the ALTC project “Engineering thresholds: an approach to curriculum development”: http://www.ecm.uwa.edu.au/__data/assets/pdf_file/0018/2172501/Engineering-Thresholds-Guide-120828.pdf
Accessesd Nov 2014)

Researchers observe reluctance of students at all levels to consider more than one cause for an effect. This shows up as extreme difficulty in working with three-variable relationships such as the ideal gas law.
(Christopher Horton Student Alternative Conceptions in Chemistry (Originally: Student Misconceptions and Preconceptions in Chemistry, California Journal of Science Education, Volume VII, Issue 2 – Spring, 2007. available at http://www.cascience.org/altchemconceptions.doc. It is also posted at the website www.daisley.net/hellevator/misconceptions/misconceptions.pdf.)

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    Subject: Chemistry

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        Subject: Chemistry | Country: United Kingdom

        Children have problems understanding very large number, to deal with very large numbers and to use numbers written in scientifical notation.

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          Subject: Chemistry | Country: Portugal

          Related Chemical reactions and how acids and bases react...

          Different definitions of acid and bases in school science and in chemistry

           

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          Subject: Chemistry | Country: United Kingdom

          Learning about moles presents many issues for students during their A-level syllabus in the UK.

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          Subject: Chemistry | Country: United Kingdom