Question

Which reaction occurs most rapidly at standard conditions? H2(g) + I2(s) 2HI(g) Cu(s) + S(s) CuS(s) C6H12O6(s) + 6O2(g) 6CO2(g) + 6H2O(g) 5C2O42-(aq) + 2MnO4- + 16H+(aq) 10CO2(g) + 2Mn2+(aq) + 2H2O(1) Ag+(aq) + I- AgI2(s)

Answer 1

first equation is the answer of this

Answer 2

Hey dear,
That's pretty hard to compare as reactants are different in every reaction. But we'll solve this logically.

● Standard conditions for a reaction are -
T = 25 °C = 298 K
P = 1 atm = 1.03×10^5 Pa

● Answer -
Fstest reaction
H2(g) + I2(s) --> 2HI(g)

● Explaination -
- For a reaction to occur rapidly, its reactants most be very active.
- From the options given, 1st pair of reactants is highly volatile than others.
- H2 being simplest element and I2 being halogen are highly reactive towards eqch other, so this reaction will occur most rapidly.
H2(g) + I2(s) --> 2HI(g)

Hope this helps you...