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GCSE chemistry help urgent please

Fifty345

Suggest which properties of graphene would make it useful in the manufacture of bullet-proof vests.

Reply 1

SamMed

it's very thin and strong

Reply 2

Fifty345

Original post by SamMed

it's very thin and strong

It’s a 3 mark question

flexible?

Very High high melting and boiling point :biggrin:

(bullets will be hot when they are fired)

Reply 5

Joe Walton

Its a good conductor of electricity and it is very strong

Reply 6

RickiestRick

Original post by Joe Walton

Its a good conductor of electricity and it is very strong

How does electricity have anything to do with stopping power?

"Oh yeah, I have my scuba kit because it's resistant to fire."

(edited 5 years ago)

Reply 7

Joe Walton

Original post by RickiestRick

How do electricity have anything to do with stopping power?

"Oh yeah, I have my scuba kit because it's resistant to fire."

lmao I didn't read the question correctly haha. I got an A grade in chemistry at a level and GCSE, I should be reading to question fully. I was wrong there XD

Reply 8

IwantaAinpaper33

Original post by Fifty345

Suggest which properties of graphene would make it useful in the manufacture of bullet-proof vests.

Graphene has many unique properties, making it an ideal material for use in bulletproof vest.
1):It has very high thermal resistance.Very high melting and boiling point which helps against the heat which is generated by the velocity of the bullet
2): Graphene is known to be one of the strongest materials ever made and a single-layer graphene sheet can withstand up to 42 N m-1 of STRESS and GREAT FORCE (Impulse/momentum), with a Young’s modulus of 1.0 Tpa. which is very useful.
3):It is incredibly light yet so strong for its weight so it is easier to carry then some vest if they were made of for e.g lead xD.
4):Graphene withstands 10 times the kinetic energy then steel can

I got A in Igcse :smile: