0
delta H = (delta Ho f products) - (delta Ho f reactants) =
((1 mole CaO)(-636.6 kJ/mole) + (1 mole CO2)(-393.5 kJ/mole)) - (1 mole CaCO3)(-1206.9 kJ/mole) = -1030.1 kJ - (-1206.9 kJ) = +176.8 kJ
This reaction is highly endothermic (positive delta H) at 25 C.
Wiki User
∙ 9y ago
Wiki User
∙ 9y agoWhen heat is applied to calcium carbonate, the decomposition reaction produces a calcium oxide solid and carbon dioxide gas. The reaction is CaCO3 -> CaO + CO2.
Yvonne Aivaliotis
Wiki User
∙ 7y ago176,8 kilojoules
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What could be done to increase the rate of decomposition of CaCO3?
Just heat it up.
What is the correct equation for the effect of heat on CacO3?
CaCO3 --> CaO + CO2
What is the formula of creating quicklime from limestone?
quick lime is CaO and limestone is CaCO3 and the method to prepare limestone out of quick lime is just heat the limestone. CaCO3--------CaO + CO2 HEAT
When Rolaids and heat are mixed what do you get?
Some components are thermally decomposed and others are burned.
Write one equation each for decomposition reactions where energy is supplied in the form of heat light or eletricity?
i) CaCo3(s) -> CaO(g)+CO2()g {heat energy} ii)2AgCl(s) -> 2Ag(s)+Cl2(g){light energy} iii)2H2O(l) -> 2H2((g)+O2(g){electricity}
What could be done to increase the rate of decomposition of CaCO3?
Just heat it up.
What is the correct equation for the effect of heat on CacO3?
CaCO3 --> CaO + CO2
A Carbonate not decomposed by heat?
A carbonate not decomposed by heat is sodium bicarbonate. The bonds of sodium bicarbonate is so strong that too much energy is required to break them down.
What is the formula of creating quicklime from limestone?
quick lime is CaO and limestone is CaCO3 and the method to prepare limestone out of quick lime is just heat the limestone. CaCO3--------CaO + CO2 HEAT
Could a toaster have heat energy?
yes
Does borax have a chemical reaction on heat?
Yes, borax is thermally decomposed.
Can compounds be decomposed?
In the vast majority of cases yes, usually by heat.
Write a chemical equation for the solution of dolomite by carbonic acid?
Limestone = CaCo3. Therefore :- CaCO3 --(HEAT)--> CaO + CO2 This is known as thermal decompostition.
Can all compounds be decomposed by heating?
-no heat can not decompose every compound!
Is geothermal not a fossil fuel or is it a fossil fuel?
Geothermal energy is not a fossil fuel, because it is harnessing energy from the thermal heat energy within the earth and is not dependent upon decomposed ancient plants and animals, which is what coal, oil, and natural gas are, which is why they are called "fossil fuels."
When Rolaids and heat are mixed what do you get?
Some components are thermally decomposed and others are burned.
How does heat energy affect evaporation?
Heat energy causes evaporation. It evaproates water, or you could say it turns liquid into gas.
