True/False questions about enthalpy and exothermic reactions.

Step 1: Evaluate the True/False statements.

• i) "Enthalpy is the quantity of heat required to raise the temperature of a substance by 1 K." This statement describes heat capacity, not enthalpy. Enthalpy is a thermodynamic property related to the total heat content of a system at constant pressure. Answer: FALSE

• ii) "During an exothermic reaction, the quantity of heat required to raise the temperature of a surroundings and gains 89 kJ of heat surroundings lose energy." This statement is grammatically incomplete and unclear. However, a key phrase "surroundings lose energy" is present. In an exothermic reaction, the system releases heat, and the surroundings gain energy (heat