For the reaction, the order of reaction for NH sub 4 raised to the plus power is 1 , and the order of reaction for NO sub 2 raised to the negative power is 1 NH sub 4 raised to the plus A q power plus NO sub 2 raised to the negative A q power rightarrow cap n sub 2 times g plus 2 cap h sub 2 cap o l What is the rate law for the reaction?
Answer
A
cap r is equal to k open bracket NH sub 4 raised to the plus power close bracket open bracket NO sub 2 raised to the negative power close bracket
B
cap r is equal to k open bracket NH sub 4 raised to the plus power close bracket open bracket NO sub 2 raised to the negative power close bracket squared
C
cap r is equal to k open bracket cap n sub 2 close bracket open bracket cap h sub 2 cap o close bracket
D
cap r is equal to k times NH raised to the plus NO squared power
Explanation
The rate law uses the reactant concentrations raised to their experimentally given reaction orders. NH₄⁺ has order 1 and NO₂⁻ has order 1, so the rate law is r = k[NH₄⁺][NO₂⁻]. Choice C matches this expression; choice D incorrectly squares the concentration of NO₂⁻.
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