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6.3 Interpreting and interacting with earth systems

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Question 13

A scientist uses three identical sealed chambers to model the greenhouse effect. Each chamber contains an identical solid surface and an equal amount of a different gas mixture at the same starting temperature.

Identical lamps direct the same amount of short-wavelength radiation into each chamber. Each gas mixture transmits 92% of this short-wavelength radiation.

The scientist also measures the percentage of longer-wavelength infrared radiation that passes through each gas mixture.

ChamberGas mixtureInfrared radiation transmitted (%)
P100% nitrogen100
Q99% nitrogen and 1% carbon dioxide67
R99% nitrogen and 1% methane41

Explain which chamber is predicted to reach the highest surface temperature when the lamps have been switched on for some time. Use the information in the table and your knowledge of the greenhouse effect.

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6.3 Interpreting and interacting with earth systems Questions

  1. GCSE
  2. /Chemistry
  3. /6.3 Interpreting and interacting with earth systems

109 exam-style questions on OCR GCSE Chemistry 6.3 Interpreting and interacting with earth systems, covering 6.3.1 Formation and evolution of the atmosphere, 6.3.2 The greenhouse effect and climate change, 6.3.3 Sources and problems of atmospheric pollutants, and 6.3.4 Producing potable water. Each one has a worked solution and a mark scheme showing where the marks go.

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