property M experiment A sample of X is carefully weighed and put inside a sealed calorimeter. Pure oxygen gas is injected into the calorimeter, and the mixture ignited. After all of X has reacted with the oxygen gas, the temperature rise of the calorimeter is measured. From this change in temperature the value of C may be calculated. A sample of solid X is carefully weighed and put inside a sealed flask. Pure hydrogen gas is added to the flask, and the mixture heated until the hydrogen starts being consumed. After hydrogen stops being consumed, the contents of the flask are removed and weighed, and from the increase in weight the value of may be calculated. A small sample of X is put on the pan of a sensitive balance and its weight measured. Next, a magnet is brought near the pan, and the weight is measured again. From the difference of weights in and out of the magnetic field, the value of M may be calculated. physical or chemical? O physical O chemical O (can't decide) O physical O chemical O (can't decide) O physical O chemical O (can't decide)
property M experiment A sample of X is carefully weighed and put inside a sealed calorimeter. Pure oxygen gas is injected into the calorimeter, and the mixture ignited. After all of X has reacted with the oxygen gas, the temperature rise of the calorimeter is measured. From this change in temperature the value of C may be calculated. A sample of solid X is carefully weighed and put inside a sealed flask. Pure hydrogen gas is added to the flask, and the mixture heated until the hydrogen starts being consumed. After hydrogen stops being consumed, the contents of the flask are removed and weighed, and from the increase in weight the value of may be calculated. A small sample of X is put on the pan of a sensitive balance and its weight measured. Next, a magnet is brought near the pan, and the weight is measured again. From the difference of weights in and out of the magnetic field, the value of M may be calculated. physical or chemical? O physical O chemical O (can't decide) O physical O chemical O (can't decide) O physical O chemical O (can't decide)
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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Thermochemistry
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Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
Question
Transcribed Image Text:property
Q
M
experiment
A sample of X is carefully weighed and put inside a sealed calorimeter. Pure
oxygen gas is injected into the calorimeter, and the mixture ignited. After all of X
has reacted with the oxygen gas, the temperature rise of the calorimeter is
measured. From this change in temperature the value of C may be calculated.
A sample of solid X is carefully weighed and put inside a sealed flask. Pure
hydrogen gas is added to the flask, and the mixture heated until the hydrogen
starts being consumed. After hydrogen stops being consumed, the contents of the
flask are removed and weighed, and from the increase in weight the value of may
be calculated.
A small sample of X is put on the pan of a sensitive balance and its weight
measured. Next, a magnet is brought near the pan, and the weight is measured
again. From the difference of weights in and out of the magnetic field, the value of
M may be calculated.
physical or
chemical?
physical
chemical
(can't decide)
physical
chemical
(can't decide)
physical
chemical
(can't decide)
Transcribed Image Text:Experiments were done on a certain pure substance X to determine some of its properties. There's a description of each experiment in the table
below.
In each case, decide whether the property measured was a chemical or physical property of X, if you can. If you don't have enough information to
decide, choose can't decide in the third column.
property
experiment
A sample of X is carefully weighed and put inside a sealed calorimeter. Pure
oxygen gas is injected into the calorimeter, and the mixture ignited. After all of X
has reacted with the oxygen gas, the temperature rise of the calorimeter is
measured. From this change in temperature the value of C may be calculated.
A sample of solid X is carefully weighed and put inside a sealed flask. Pure
hydrogen gas is added to the flask, and the mixture heated until the hydrogen
starts being consumed. After hydrogen stops being consumed, the contents of the
flask are removed and weighed, and from the increase in weight the value of may
be calculated.
A small sample of X is put on the pan of a sensitive balance and its weight
measured Next a magnet is brought near the pan and the weight is measured
physical or
chemical?
physical
chemical
(can't decide)
physical
chemical
(can't decide)
physical
X
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