Carbon dioxide and methane as greenhouse gases

EasyMedium
1234567891011
Question 3
Medium

A laboratory simulation of the atmospheric conditions on early Earth uses a gas mixture containing methane (CH4CH_4CH4​) and propene (C3H6C_3H_6C3​H6​).

a.

Explain how methane, a greenhouse gas, acts to keep the simulated planetary surface warmer than it would be without an atmosphere. You should refer to radiation and wavelengths in your answer.

[3]
b.

Explain how a researcher could chemically confirm that propene is an unsaturated hydrocarbon. State the reagent used and the observation that would confirm this.

[2]

Carbon dioxide and methane as greenhouse gases Questions

  1. GCSE
  2. /Chemistry
  3. /Carbon dioxide and methane as greenhouse gases