CH-1216
Exothermic and endothermic reactions
Chemistry · Secondary 4 · Hard · Exothermic and endothermic reactions
In an experiment, 0.0200 mol of reacts with excess HCl in solution. The temperature of 100 g of solution increases by 5.0 °C. Take specific heat capacity as 4.2 J g⁻¹ °C⁻¹.
What is the enthalpy change of reaction per mole of ?
What is the enthalpy change of reaction per mole of ?
- +42.0 kJ/mol
- −42.0 kJ/mol
- +105 kJ/mol
- −105 kJ/mol
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