8. Thermochemistry

Which of the following is typically the initial source of chemical energy in most chemical reactions?

When water vapor condenses to liquid water, which type of energy is primarily lost to the surroundings?

The energy needed to create any type of weather comes from the ________.

As a substance gets cooler, what happens to the molecules within it?

When a puddle of water evaporates on a sunny day, where does the energy required for evaporation primarily come from?

Which of the following best describes how adding or removing heat from a system can affect its state of matter?

Which term refers to the energy required to increase the surface area of a liquid?

Energy for most chemical reactions in cells is supplied by which of the following molecules?

Energy stored in food would be considered which type of energy?

Which of the following most accurately describes the Earth's energy cycle?

Which of the following best describes how temperature affects the rate of evaporation of a liquid?

Which form of energy changes in chemical reactions due to bonds breaking and forming?

A snack bar contains 255 calories. How many joules of energy does this represent? (Note: 1 calorie = 4.184 joules)

Earth takes in thermal energy from the Sun in a process called:

Which of the following is a primary way humans cause thermal pollution?