Thermochemistry Review

Front

What is the formula to calculate heat absorbed or released?

Back

q = m × c × ΔT, where q is heat, m is mass, c is specific heat, and ΔT is the change in temperature.

Front

What is specific heat?

Back

Specific heat is the amount of heat required to raise the temperature of 1 gram of a substance by 1°C.

Front

How do you convert Celsius to Kelvin?

Back

Add 273 to the Celsius temperature.

Front

What is the relationship between temperature and kinetic energy?

Back

Temperature is a measure of the average kinetic energy of the particles in a substance.

Front

What is enthalpy?

Back

Enthalpy is a measure of the total heat content of a system, often represented as ΔH.

Front

What is an exothermic reaction?

Back

An exothermic reaction is a chemical reaction that releases heat to its surroundings.

Front

What is an endothermic reaction?

Back

An endothermic reaction is a chemical reaction that absorbs heat from its surroundings.

Front

How do you calculate the enthalpy change of a reaction?

Back

ΔH = ΣΔHf(products) - ΣΔHf(reactants), where ΔHf is the standard enthalpy of formation.

Front

What is the specific heat of aluminum?

Back

The specific heat of aluminum is 0.900 J/g°C.

Front

What is the significance of ΔH in thermochemistry?

Back

ΔH indicates whether a reaction is endothermic (positive ΔH) or exothermic (negative ΔH).