Hess's Law: Definition, Formula & Examples


Choose an answer and hit 'next'. You will receive your score and answers at the end.

question 1 of 3

What is Hess's Law?

Create Your Account To Take This Quiz

As a member, you'll also get unlimited access to over 79,000 lessons in math, English, science, history, and more. Plus, get practice tests, quizzes, and personalized coaching to help you succeed.

Try it risk-free
Try it risk-free for 30 days. Cancel anytime
Already registered? Log in here for access

1. How can we write the following set of equations in the simplest form according to Hess's Law?

2. What combustion and formation equations would you use for the following equation?

Create your account to access this entire worksheet
A Premium account gives you access to all lesson, practice exams, quizzes & worksheets
Access to all video lessons
Quizzes, practice exams & worksheets
Certificate of Completion
Access to instructors
Create an account to get started Create Account

About This Quiz & Worksheet

Work through the quiz and worksheet to see what you know about Hess's Law. Its formula and some examples are on the interactive quiz.

Quiz & Worksheet Goals

Take the quiz to find out how much you know about:

  • The meaning of Hess's Law
  • Finding the change in enthalpy of an equation
  • Applying Hess's Law

Skills Practiced

  • Information recall - access the knowledge you have gained about the meaning of Hess's Law
  • Knowledge application - use your knowledge to answer questions about using the equation for Hess's Law
  • Reading comprehension - ensure that you draw the most important information from the lesson on Hess's Law

Additional Learning

You can practice using this law in greater detail by accessing the lesson called Hess's Law: Definition, Formula & Examples. Objectives you'll get to complete include:

  • Review the breakdown of sugar into energy
  • Define enthalpy
  • Determine how to use Hess's Law