2007-03-19 17:45:22 · 5 answers · asked by lekshel5 1 in Science & Mathematics ➔ Chemistry
exothermic:
1. release heat, therefore the room temperature will increase
2. ΔH = negative (kJ mol^-1)
3. bond will be formed, and energy will be release in form of heat, the molecules that are formed had a lower kinetic energy but very stabil
endothermic:
1. absorb heat, therefore the room temperature will decrease
2. ΔH = positive (kJ mol^-1)
3. bonds will broke down, because the energy of reactants are less than the energy of products in the chemical reaction
2007-03-19 18:25:20 · answer #1 · answered by Anonymous · 7⤊ 0⤋
Endothermic Definition
2016-10-28 11:51:05 · answer #2 · answered by crichton 4 · 1⤊ 0⤋
They are types of chemical reactions:
Endothermic absorbs heat (feels cold)
Exothermic releases heat (feels hot)
2007-03-19 17:48:48 · answer #3 · answered by teef_au 6 · 4⤊ 0⤋
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endothermic: absorbing heat: describes a chemical reaction in which heat is absorbed exothermic: producing heat: describes a chemical reaction that produces heat.
2016-03-24 15:31:50 · answer #4 · answered by Anonymous · 0⤊ 0⤋
exothermic process- a process that results in the release of heat.
endothermic- a process that absorbs heat.
2007-03-19 17:49:57 · answer #5 · answered by Anonymous · 0⤊ 0⤋
exothermic release energy and endothermic gain energy
2015-08-11 20:21:35 · answer #6 · answered by Shashi 1 · 0⤊ 0⤋
Exothermic literally means 'release of heat'.
EXO- means to give out
THERMIC-Heat
Therefore exothermic rxn. involves the release of heat.....
Endothermic literally means 'intake/absorption of heat'.
ENDO-means to absorb
THERMIC- means heat
Therefore endothermic rxn. involves absorption/intake of heat............
2007-03-19 17:58:26 · answer #7 · answered by Shubhang 2 · 3⤊ 0⤋
exothermic is hot to the touch
=> reaction is losing heat to your fingertips
delta H is negative
endothermic is cool to the touch
=> reaction is drawing heat from your fingertips into itself.
delta H is positive
2007-03-19 17:48:46 · answer #8 · answered by Alan V 3 · 0⤊ 0⤋
exothermic -> produces heat after reaction
endothermic-> requires heat for reaction
easy way for me to remember is the "ex"
exhale-> release air
exothermic-> release heat
2007-03-19 17:48:17 · answer #9 · answered by Moo 4 · 2⤊ 0⤋
exothermic rx in which heat is discharged eg when water is added to CaO (calcium oxide) it reacts with water vigoruosly
and heat is evolved
CaO + H2O-----------Ca(OH)2 + Heat
endothermic rx in which heat is absorbed .these r the rxs in which heat is necessary to take place ie when water is added to NaCO3 or NaHCO3 ,it absorbs heat and the solution become cold .
similarly when we add dil H2SO4 to NaCl it will react and HCl gas will produce.
H2SO4 +NaCl(heat)-------NaSO4 +HCl
2007-03-19 18:04:38 · answer #10 · answered by Anonymous · 0⤊ 0⤋