Two identical sealed chambers, A and B, contain gas mixtures. The mixtures differ only in the proportion of carbon dioxide they contain.
A plate at the base of each chamber is supplied with 100 J of energy. The warmed plates emit infrared radiation. The only way energy can leave each chamber is as infrared radiation through the top.
The table shows the infrared energy that leaves each chamber during the next 60 seconds.
| Chamber | Carbon dioxide in gas mixture (%) | Infrared energy leaving chamber in 60 seconds (J) |
|---|---|---|
| A | 1.0 | 72 |
| B | 5.0 | 58 |
Calculate the difference between the amounts of energy remaining in the two chambers after 60 seconds.
Explain which plate is likely to have the higher temperature after 60 seconds.
73 exam-style questions on AQA GCSE Chemistry 9.2 Carbon dioxide and methane as greenhouse gases, covering 9.2.1 Greenhouse gases, 9.2.2 Human activities which contribute to an increase in greenhouse gases in the, 9.2.3 Global climate change, and 9.2.4 The carbon footprint and its reduction. Each one has a worked solution and a mark scheme showing where the marks go.