Chemistry · Chapter 13

Compare Q With K and Call the Shift

Set whatever amounts you like in the flask. Q is worked out live and parked on the scale next to K, so the direction of the shift is never a guess.

Q against K the gold dot always slides toward the tick

The position of Q relative to K

Set the sliders to see the verdict.

The fraction tells you the whole story. Too little product on top and the reaction must build more.

What is in the flask hollow bars mark where equilibrium lands

Current and equilibrium concentrations

Press Let it settle and the solid bars walk to the hollow outlines. Watch Q in the panel beside them climb or fall until it lands on K.

Reaction

0.00Q goes right
K at this temperature = 50.0
Q ÷ K = 0.00
Shift needed, x = 0.000 M

Set the flask

Reading the comparison
Q is below K
The top of the fraction is too small, so the forward reaction wins until Q climbs to K.