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Chapter 22: Q22.50P (page 1019)

Why is commercial H2SO4so inexpensive?

Short Answer

Expert verified

Since every step of the process is exothermic and heat is a useful by-product. SoH2SO4 commercial is inexpensive.

Step by step solution

01

Concept Introduction

Sulfuric acid is created industrially by reacting water with sulphur trioxide which is made by combining sulphur dioxide and oxygen chemically using either the contact or chamber processes.

02

Information Provided

Every step of the process of production of H2SO4is exothermic ((burning S, oxidizing SO2, hydrating SO3), and heat is a desirable byproduct. The majority of the heat is sold as steam, with the remainder being used to circulate gases around the plant. A typical plant that produces 825 tonnes ofH2SO4 per day generates enough steam to create7x106 watts of electricity.

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