Unit 10 & 11 TEST

Front

What is an endothermic reaction?

Back

An endothermic reaction is a chemical reaction that absorbs energy from its surroundings, resulting in a decrease in temperature.

Front

What is an exothermic reaction?

Back

An exothermic reaction is a chemical reaction that releases energy to its surroundings, resulting in an increase in temperature.

Front

What happens to energy during an exothermic change?

Back

During an exothermic change, energy is released, which warms the surroundings.

Front

What is the effect of increasing the concentration of a reactant on equilibrium?

Back

Increasing the concentration of a reactant shifts the equilibrium position to the right, favoring the formation of products.

Front

Why is sand hotter than water at the beach?

Back

Sand has a lower specific heat than water, meaning it heats up faster than water when exposed to the same amount of energy.

Front

What is specific heat?

Back

Specific heat is the amount of thermal energy required to increase the temperature of 1 kg of a material by 1°C.

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of particles in a substance, related to its 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 equilibrium in a chemical reaction?

Back

Equilibrium in a chemical reaction is the state where the rates of the forward and reverse reactions are equal, resulting in constant concentrations of reactants and products.

Front

What does it mean for a reaction to shift to the left?

Back

A reaction shifting to the left means that the concentration of reactants increases and the concentration of products decreases.