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- a) Exothermic. Heat is released in process, feels hot when near
b) Endothermic. Heat is taken in for water to transition from liquid to gas. Feels cool
c) Endothermic. Heat is taken in for ice to transition from solid to liquid. Feels cold
- Reactants need weak bond strength, while products need strong bond strength
- Heat is a form of energy, while temperature is a quantitative measurement of that energy.
eg. Heat refers to the energy produced in a hot oven.
Temperature is the numerical reading of that energy (200 degrees celcius)
- a) Octane rating of 98 indicates a knocking characteristic of 98% isooctane and 2% heptane
b) It does not contain enough information to determine if the fuel contains oxygens