Free Reaction Quotient Calculator
Calculate the reaction quotient (Q) for a reaction aA + bB → cC + dD from current concentrations, and compare it to K to predict reaction direction.
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Reaction Quotient (Q)
0.0400
Reaction Quotient (Q) vs Concentration of Product C
Reaction Quotient
Formula
Q = [C]^c × [D]^d / ([A]^a × [B]^b)
Where:
Compare Q to K:
Example Calculation
A + B → C + D. Current: [A]=0.5, [B]=0.5, [C]=0.1, [D]=0.1. All coefficients = 1.
- 01Q = [C]^c[D]^d / [A]^a[B]^b
- 02Q = (0.1)¹(0.1)¹ / (0.5)¹(0.5)¹
- 03Q = 0.01 / 0.25
- 04Q = 0.04
Frequently Asked Questions
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