I think the answer is reversible. Reversible reaction is a kind of reaction which can react in both direction at the same time. And when the both side reactions get the same speed, the reaction is at a equilibrium state.
Answer:
-431.5 J/g
Explanation:
Mass of solution = Mass of solute + mass of solvent
Solute is KOH while solvent is water.
Mass of KOH = 16.9 g
Mass of water = 90.8 g
Mass of solution = 16.9 + 90.8
= 107.7 g
Change in temperature (Δt) = 34.27 - 18.5
= 16.2 °C
Heat required to raise the temperature of water is released by dissolving KOH.
Therefore,
Heat released by KOH = m × s× Δt
= 107.7 × 4.18 × 16.2
= 7293 J
Heat released by per g KOH = 7293 J/16.9 g
= 431.5 J/g
As heat is released therefore, enthalpy change would be negative.
Enthalpy change of KOH = -431.5 J/g
A response that is chemical in nature and is characterized with the aid of the release of power in the shape of warmth or light is referred to as an exothermic response.
Following processes are exothermic:-
freezing of water.
digestion of food.
a person running.
heating with a furnace.
Following processes are endothermic:-
boiling of water.
a person growing.
wood being chopped.
Endothermic reactions are chemical reactions wherein the reactants soak up warmness electricity from the environment to shape products. those reactions decrease the temperature of their surrounding place, thereby growing a cooling impact.
DISCLAIMER:- Your question is incomplete , see full question below:-
Classify the following processes as exothermic or endothermic:
(a) freezing of water.
(b) boiling of water.
(c) digestion of food.
(d) a person running.
(e) a person growing.
(f) wood being chopped.
(g) heating with a furnace.
Learn more about exothermic here:- brainly.com/question/2924714
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Answer:
Hella false
Explanation:
big cap.
hope this helped, please make me brainliest
