Question

write ten equation of exothermic and endothermic reaction ​

Answer 1

Answer:

In an exothermic reaction, ΔH" role="presentation" style="display: inline; font-style: normal; font-weight: normal; line-height: normal; font-size: 16px; text-indent: 0px; text-align: left; text-transform: none; letter-spacing: normal; word-spacing: normal; overflow-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px; margin: 0px; position: relative;">ΔHΔH is less than zero because the energy of the reactants is greater than the energy of the products. Energy is released in the reaction. For example:

H2(g)+Cl2(g)&#x2192;2HCl (g)&#x394;H&lt;0" role="presentation" style="display: inline; font-style: normal; font-weight: normal; line-height: normal; font-size: 16px; text-indent: 0px; text-align: center; text-transform: none; letter-spacing: normal; word-spacing: normal; overflow-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px; margin: 0px; position: relative;">H2(g)+Cl2(g)→2HCl (g)ΔH<0H2(g)+Cl2(g)→2HCl (g)ΔH<0

In an endothermic reaction, &#x394;H" role="presentation" style="display: inline; font-style: normal; font-weight: normal; line-height: normal; font-size: 16px; text-indent: 0px; text-align: left; text-transform: none; letter-spacing: normal; word-spacing: normal; overflow-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px; margin: 0px; position: relative;">ΔHΔH is greater than zero because the energy of the reactants is less than the energy of the products. Energy is absorbed in the reaction. For example:

C (s)+H2O (l)&#x2192;CO (g)+H2(g)&#x394;H&gt;0" role="presentation" style="display: inline; font-style: normal; font-weight: normal; line-height: normal; font-size: 16px; text-indent: 0px; text-align: center; text-transform: none; letter-spacing: normal; word-spacing: normal; overflow-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px; margin: 0px; position: relative;">C (s)+H2O (l)→CO (g)+H2(g)ΔH>0C (s)+H2O (l)→CO (g)+H2(g)ΔH>0

Some of the information relating to exothermic and endothermic reactions is summarised

Answer 2

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