Nitrogen monoxide has been found to react with oxygen gas to produce the brown gas nitrogen dioxide. When one mole of no reacts with oxygen, 57.0 kJ of heat is released. a. Write the thermochemical equation for the reaction between one mole of nitrogen monoxide and oxygen to produce nitrogen dioxide. b. Is the reaction exothermic or endothermic? c. What is AH when 5.00 g of nitrogen monoxide reacts? d. How many grams of nitrogen monoxide must react with an excess of oxygen to produce 10.0 kJ of heat?
Nitrogen monoxide has been found to react with oxygen gas to produce the brown gas nitrogen dioxide. When one mole of no reacts with oxygen, 57.0 kJ of heat is released. a. Write the thermochemical equation for the reaction between one mole of nitrogen monoxide and oxygen to produce nitrogen dioxide. b. Is the reaction exothermic or endothermic? c. What is AH when 5.00 g of nitrogen monoxide reacts? d. How many grams of nitrogen monoxide must react with an excess of oxygen to produce 10.0 kJ of heat?
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter8: Thermochemistry
Section: Chapter Questions
Problem 21QAP: Nitrogen oxide (NO) has been found to be a key component in many biological processes. It also can...
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Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
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Hi sorry to bother I know that you guys can only answer 3 questions per the ask questions so I was wondering if you could solve the following 3 for me please thank you
Transcribed Image Text:4. Nitrogen monoxide has been found to react with oxygen gas to produce the brown gas
nitrogen dioxide. When one mole of no reacts with oxygen, 57.0 kJ of heat is released.
Write the thermochemical equation for the reaction between one mole of nitrogen
monoxide and oxygen to produce nitrogen dioxide.
a.
b.
Is the reaction exothermic or endothermic?
c. What is AH when 5.00 g of nitrogen monoxide reacts?
d.
How many grams of nitrogen monoxide must react with an excess of oxygen to
produce 10.0 kJ of heat?
Transcribed Image Text:(
5. Strontium metal combines with graphite (C) and oxygen gas to produce strontium
carbonate. The formation of one mole of SrCO3 releases 1.220 x 10³ kJ of heat.
a.
Write a balanced thermochemical equation for the reaction resulting in one mole
of SrCO3.
b. What is AH when 10.0 g of strontium reacts with excess graphite and oxygen?
What mass of SrCO3 forms when 2355 kJ of heat are also formed?
6. Given 2CuO (s) → 2Cu (s) + O2 (g) AH = 314.6 kJ
a. Determine the heat of formation of CuO (s).
b. Calculate AH for the formation of 13.58 g of CuO.
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