Math Problem Statement

Liquid methanol 

CH3OH

 can be used as an alternative fuel in pickup and SUV engines. An industrial method for preparing it uses the catalytic hydrogenation of carbon monoxide:

How much heat (in 

kJ

) is released when 

15.0L

 of 

CO

 at 

85°C

 and 

112kPa

 reacts with 

18.0L

 of 

H2

 at 

75°C

 and 

744torr

? Be sure your answer has the correct number of significant figures.

Note: Reference the Fundamental constantsConversion factors for non-SI units, and Thermodynamic properties of pure substances tables for additional information.

Solution

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Math Problem Analysis

Mathematical Concepts

Stoichiometry
Ideal Gas Law
Thermochemistry
Significant Figures

Formulas

Ideal Gas Law: PV = nRT
Enthalpy Calculation: ΔH (heat) = n × ΔH_reaction

Theorems

Ideal Gas Law

Suitable Grade Level

Grades 11-12