Oxy-acetylene torches can be used to cut or weld metal. Oxygen and acetylene are fed from separate compressed gas cylinders through pressure regulators to the torch where they are mixed and combusted. To estimate the amount of metal that can be cut or welded per unit volume of gas, the composition of the gases produced by combustion and heat produced by the combustion reaction must be determined. For this problem: a. Define a closed system that can be used to calculate the heat produced o. Define an open system that can be used to calculate the heat produced c. List at least two intensive variables that are important in calculation d. List at least two extensive variables that are important in the calculation

Oxy-acetylene torches can be used to cut or weld metal. Oxygen and acetylene are fed from separate compressed gas cylinders through pressure regulators to the torch where they are mixed and combusted. To estimate the amount of metal that can be cut or welded per unit volume of gas, the composition of the gases produced by combustion and heat produced by the combustion reaction must be determined. For this problem: a. Define a closed system that can be used to calculate the heat produced o. Define an open system that can be used to calculate the heat produced c. List at least two intensive variables that are important in calculation d. List at least two extensive variables that are important in the calculation

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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Question

Oxy-acetylene torches can be used to cut or
weld metal. Oxygen and acetylene are fed
from separate compressed gas cylinders
through pressure regulators to the torch
where they are mixed and combusted. To
estimate the amount of metal that can be cut
or welded per unit volume of gas, the
composition of the gases produced by
combustion and heat produced by the
combustion reaction must be determined. For
this problem:
a. Define a closed system that can be used to
calculate the heat produced
b. Define an open system that can be used to
calculate the heat produced
c. List at least two intensive variables that are
important in calculation
d. List at least two extensive variables that are
important in the calculation

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