8. Thermochemistry

Which of the following observations indicates that a liquid has transferred thermal energy to the air?

When an atom is exposed to an energy source such as electricity, which of the following occurs?

Which of the following substances contains the most usable energy per kilogram?

Which of the following units is commonly used to measure energy in the International System of Units (SI)?

Which process is primarily responsible for transferring heat energy from the Sun to the Earth?

Which one of the following substances would have the highest heat of vaporization?

What is the primary source of energy converted by producers in an ecosystem?

Which of the following best describes the effect of adding thermal energy to a substance?

In an energy pyramid, which trophic level contains the most energy?

In which of the following environments are convection currents most likely to form?

Chemical energy is a form of _____ energy.

A plant uses energy from the sun to make food. What kind of energy transformation is this?

When a liquid is heated, which of the following best describes what happens to its particles?

Which symbol is commonly used to represent thermal energy in chemistry?

How does energy initially enter an apple?