Question

when 64.5 g of potassium chlorate is dissolved in water, 21.78 kj of energy is absorbed. is the enthalpy of dissolution of kclo₃ exothermic or endothermic?
exothermic
endothermic
question 2
1 pts
which of the following are intensive properties? note that there may be more than one correct choice. select all that apply.
work
mass
molar enthapy, kj/mol
temperature
entropy

Explanation:

• An exothermic process releases energy, while an endothermic process absorbs energy. Since 21.78 kJ of energy is absorbed when potassium chlorate is dissolved, this is an endothermic process.
• Intensive properties do not depend on the amount of substance. Molar enthalpy (kJ/mol) and temperature are intensive as they are per - mole or independent of the quantity. Work, mass, and entropy depend on the amount of substance (extensive properties).

Answer:

• First question: Endothermic
• Second question: Molar Enthapy, kJ/mol; Temperature