Which of the following is an example of heterogeneous catalysis?

A. An aqueous acid reacts with a solid metal.
B. Ethylene and hydrogen gases are adsorbed onto the surface of a metal catalyst to accelerate the formation of ethane.
C. An enzyme catalyzes a biochemical reaction inside a human muscle cell.
D. An enzyme catalyzes a biochemical reaction that produces the alcohol and CO2 gas in beer.

Question

Which of the following is an example of heterogeneous catalysis?

 		A.	An aqueous acid reacts with a solid metal.
 		B.	Ethylene and hydrogen gases are adsorbed onto the surface of a metal catalyst to accelerate the formation of ethane.
 		C.	An enzyme catalyzes a biochemical reaction inside a human muscle cell.
 		D.	An enzyme catalyzes a biochemical reaction that produces the alcohol and CO2 gas in beer.

vera_ewing · Answer

@sweetburger Help please!

vera_ewing · Answer

@aaronq Help please!

welshfella · Answer

B

vera_ewing · Answer

Are you sure?

aaronq · Answer

"heterogeneous" means that there are two phases in the system

typically a solid and an aqueous one

aaronq · Answer

could also be gases and solids though

welshfella · Answer

true - its just that i remember studying that reaction in B and it was given as an example of heterogenous catalysis

aaronq · Answer

B is right, though. i was just giving an explanation of the terms

aaronq · Answer

understanding > memorizing

welshfella · Answer

yes  - i just ckecked my old notes it is B