A research group develops a carbon aerogel for insulation in a battery pack. Fig. 1 shows its open network. The material must be light, but it must not allo...
Question 1 Report
A research group develops a carbon aerogel for insulation in a battery pack. Fig. 1 shows its open network. The material must be light, but it must not allow a damaged battery to overheat nearby cells.
(a) Name the element forming the aerogel network. [1]
(b) Give one property needed for a good thermal insulator. [1]
(c) Suggest how the pores shown in Fig. 1 reduce energy transfer by conduction. [2]
(d) Give two possible uses of a carbon material other than insulation. [3]
Answer Details
(a) carbon [1] (b) low thermal conductivity [1] (c) pores contain trapped air [1]; air particles are far apart so transfer by conduction is reduced [1] (d) any three from: graphite electrodes [1]; diamond cutting tools [1]; activated carbon water filters [1]; carbon fibre sports equipment [1]; graphene electronic devices [1]
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