Home › TS EAMCET › Chemistry › Chemical Equilibrium and Acids-Bases › What happens to Kc of an exothermic reaction whe…
What happens to Kc of an exothermic reaction when the temperature is raised?
AIt decreases
BIt stays constant
CIt becomes zero
DIt increases
Answer & Solution
Correct answer: A. It decreases
Heat acts like a product in an exothermic reaction, so more heat moves the equilibrium backward and lowers K.
Related questions
A catalyst affects a reversible reaction by:Which change alters the numerical value of Kc?In dilute solutions (below 0.01 M), the activity of H+ equals its:Activity of the hydrogen ion is a quantity that:The extent of dissociation of an acid depends on the strength and what of the H-A bond?The reaction quotient changes on adding a gas only if the gas is:At constant temperature, compressing a gas mixture to half its volume makes total pressureA weak acid, weak base salt solution has pH above 7 when pKa minus pKb is: