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QUESTION 11 Which of the following has a standard enthalpy of formation of zero? O3(g) 12(g) Ar(g) Br2(9)

QUESTION 11 Which of the following has a standard enthalpy of formation of zero? O3(g) 12(g) Ar(g) Br2(9)

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Which of the following has a standard enthalpy of formation of zero
**Question 11:** Which of the following has a standard enthalpy of formation of zero? - O₃(g) - I₂(g) - Ar(g) - Br₂(g) In this question, you are required to identify which of the gaseous substances listed has a standard enthalpy of formation of zero. The standard enthalpy of formation is defined as the change in enthalpy when one mole of a substance in its standard state is formed from its elements in their standard states under standard conditions (298 K and 1 atm). The choices are: - **O₃(g):** Ozone, a triatomic molecule of oxygen. - **I₂(g):** Iodine in its diatomic molecular form. - **Ar(g):** Argon, a noble gas existing as a monoatomic molecule. - **Br₂(g):** Bromine in its diatomic molecular form. The correct answer is typically an element in its most stable form at standard conditions.
Transcribed Image Text:**Question 11:** Which of the following has a standard enthalpy of formation of zero? - O₃(g) - I₂(g) - Ar(g) - Br₂(g) In this question, you are required to identify which of the gaseous substances listed has a standard enthalpy of formation of zero. The standard enthalpy of formation is defined as the change in enthalpy when one mole of a substance in its standard state is formed from its elements in their standard states under standard conditions (298 K and 1 atm). The choices are: - **O₃(g):** Ozone, a triatomic molecule of oxygen. - **I₂(g):** Iodine in its diatomic molecular form. - **Ar(g):** Argon, a noble gas existing as a monoatomic molecule. - **Br₂(g):** Bromine in its diatomic molecular form. The correct answer is typically an element in its most stable form at standard conditions.
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