EVERYDAY SCIENCE

SCIENCE

CHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Graphene sheets burn at
A
a higher temperature than graphite
B
the same temperature as graphite
C
a lower temperature than graphite
D
None of the above
Explanation: 

Detailed explanation-1: -it(graphene) has a high specific surface area of ca. 1168 m2 g–1 and starts to burn at 350 °C because of a large interlayer spacing of graphene sheets (i.e., 5.1 Å).

Detailed explanation-2: -However, graphene has much higher electrical conductivity than graphite, due to the occurrence of quasiparticles, which are electrons that function as if they have no mass and can travel long distances without scattering.

Detailed explanation-3: -In very basic terms graphene could be described as a single, one atom thick layer of the commonly found mineral graphite; graphite is essentially made up of hundreds of thousands of layers of graphene.

Detailed explanation-4: -Answer and Explanation: Yes, graphene burns. This is because graphene contains carbon atoms and carbon atoms burn in oxygen to yield carbon dioxide.

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