Measurements show that the enthalpy of a mixture of gaseous reactants decreases by 373. kJ during a certain chemical reaction, which is carried out at aconstant pressure. Furthermore, by carefully monitoring the volume change it is determined that 138. kJ of work is done on the mixture during the reaction.Calculate the change in energy of the gas mixturekJduring the reaction. Round your answer to 3significant digits.x10exothermicIs the reaction exothermic or endothermic?endothermicContinueSubmit Assignment2021 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | AccessibilityMacBook Airesc吕0888000D00DIIDDF1F2F3F4F5F6F7F8F9F102#$&23456789W

We have to calculate the change in energy and nature of reaction. ∆U = Q + W Here ∆U is change of energy, Q is heat absorbed/released , W is work done. Since we have decrease of the enthalpy so we have Q = negative in sign and it is -373 KJ Since enthalpy means energy is decreasing so the reaction must be Exothermic. Also Work done on the gas is taken as positive work done so w = + 138 KJ ∆U = -373 KJ + 138 KJ => -235 KJ

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Measurements show that the enthalpy of a mixture of gaseous reactants decreases by 373. kJ during a certain chemical reaction, which is carried out at a constant pressure. Furthermore, by carefully monitoring the volume change it is determined that 138. kJ of work is done on the mixture during the reaction. Calculate the change in energy of the gas mixture during the reaction. Round your answer to 3 significant digits. O exothermic Is the reaction exothermic or endothermic? O endothermic

Measurements show that the enthalpy of a mixture of gaseous reactants decreases by 373. kJ during a certain chemical reaction, which is carried out at a constant pressure. Furthermore, by carefully monitoring the volume change it is determined that 138. kJ of work is done on the mixture during the reaction. Calculate the change in energy of the gas mixture during the reaction. Round your answer to 3 significant digits. O exothermic Is the reaction exothermic or endothermic? O endothermic

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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