The reaction between several pieces of CaCO3 marble and dilute hydrochloric acid solution was used by the students to investigate the influence of the contact surface on the reaction rate. During the reaction, CO2 leaves the mixture and is collected in a graduated syringe. The results are given in the figure. In Experiment 1, they used 5 small pieces of marble and 50 ml of 0.1 mol / liter hydrochloric acid solution. In Experiment 2, students used a large piece of marble and 50 ml of the same acid. a) Why is there a large excess of marble in both experiments? b) Why is the final volume of CO2 the same in both experiments? c) why do curves become flat?
The reaction between several pieces of CaCO3 marble and dilute hydrochloric acid solution was used by the students to investigate the influence of the contact surface on the reaction rate. During the reaction, CO2 leaves the mixture and is collected in a graduated syringe. The results are given in the figure. In Experiment 1, they used 5 small pieces of marble and 50 ml of 0.1 mol / liter hydrochloric acid solution. In Experiment 2, students used a large piece of marble and 50 ml of the same acid. a) Why is there a large excess of marble in both experiments? b) Why is the final volume of CO2 the same in both experiments? c) why do curves become flat?
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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The reaction between several pieces of CaCO3 marble and dilute hydrochloric acid solution was used by the students to investigate the influence of the contact surface on the reaction rate. During the reaction, CO2 leaves the mixture and is collected in a graduated syringe. The results are given in the figure. In Experiment 1, they used 5 small pieces of marble and 50 ml of 0.1 mol / liter hydrochloric acid solution. In Experiment 2, students used a large piece of marble and 50 ml of the same acid.
a) Why is there a large excess of marble in both experiments?
b) Why is the final volume of CO2 the same in both experiments?
c) why do curves become flat?
Transcribed Image Text:80-
Eksperimenti 1X
Eksperimenti 2
60
40
-
20
10 20 30 40 50 60 70 80 90 100
time of reaction(s)
Volume of CÓ2(ml)
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