Chemistry In Focus
Chemistry In Focus
7th Edition
ISBN: 9781337670425
Author: Tro
Publisher: Cengage
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Chapter 1, Problem 1SC

A chemist observes the behavior of a gas by filling a balloon and measuring its volume at different temperatures. After making many measurements, he concludes that the volume of a gas always increases with increasing temperature. The chemist's conclusion is best classified as an:

a. observation

b. law

c. theory

Expert Solution & Answer
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Interpretation Introduction

Interpretation:

The given statement is to be classified as an observation, a law, or a theory.

Concept introduction:

A law is a rule which is universally followed. A law is something which is undeniable.

A theory is an idea or a framework, which is used to explain some phenomenon.

The process of monitoring a change in something is called an observation.

Answer to Problem 1SC

Correct Answer: Option (b).

Explanation of Solution

Reason for correct option:

The experiment is conducted to check the behavior of a gas by a chemist, in which a balloon is filled with the given gas and the volume of gas is measured at different temperatures. The chemist observed that when there is an increase in the temperature of the gas, the volume of the gas also increases. This signifies a law. It is not a type of a theory or any observation. After many experiments on the behavior of gases, the above statement is proved and becomes a law.

Hence, option (b) is correct.

Reason for incorrect options:

Option (a) is incorrect because according to option (a), it is an observation.

Option (c) is incorrect because according to option (c), it is a theory.

Hence, options (a) and (c) are incorrect.

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Chapter 1 Solutions

Chemistry In Focus

Ch. 1 - Define chemistry.Ch. 1 - Prob. 5ECh. 1 - Prob. 6ECh. 1 - How are science and art similar? How are they...Ch. 1 - What is different about the Greek philosophers...Ch. 1 - Match each of the people in column A with their...Ch. 1 - What were the two main pursuits of alchemy? What...Ch. 1 - Prob. 11ECh. 1 - What is the difference between an element and a...Ch. 1 - What is the difference between a pure substance...Ch. 1 - What is the difference between a homogeneous...Ch. 1 - Explain the differences among a solid, a liquid,...Ch. 1 - Match each term in the left column with three...Ch. 1 - What is the atomic theory?Ch. 1 - Describe Rutherfords gold foil experiment.Ch. 1 - Describe the structure of the atom as explained by...Ch. 1 - What are black holes, and how does their existence...Ch. 1 - Classify each of the following as an observation...Ch. 1 - Classify each of the following as a law or a...Ch. 1 - To the best of your knowledge, classify each of...Ch. 1 - To the best of your knowledge, classify each of...Ch. 1 - Which substance is a liquid mixture? a. lemonade...Ch. 1 - Which substance is a solid? a. the helium in a...Ch. 1 - Classify each of the following properties as...Ch. 1 - Classify each of the following properties as...Ch. 1 - Classify each of the following changes as physical...Ch. 1 - Classify each of the following changes as physical...Ch. 1 - The burning of gasoline in automobile engines is a...Ch. 1 - A campfire is a chemical reaction involving wood...Ch. 1 - Prob. 33ECh. 1 - Prob. 34ECh. 1 - A chemist combines 22 grams of sodium with 28...Ch. 1 - A chemist combines 6 grams of hydrogen with 52...Ch. 1 - Several samples of carbon dioxide are obtained and...Ch. 1 - Several samples of methane gas, the primary...Ch. 1 - According to Rutherfords model of the atom, how...Ch. 1 - According to Rutherfords model of the atom, how...Ch. 1 - When water boils, small bubbles form in the...Ch. 1 - Prob. 42ECh. 1 - Prob. 43ECh. 1 - Prob. 44ECh. 1 - Prob. 45ECh. 1 - The nuclei of a limited number of atoms are...Ch. 1 - Prob. 47ECh. 1 - Based on the molecular views shown for each of the...Ch. 1 - Read The Molecular Revolution" box in this chapter...
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