Which of the following statements about the Gibbs free energy G is false

Classification and Properties of Matter

In chemistry and physics, matter is any substance that has mass and takes up space by having volume. All everyday objects that can be touched are ultimately composed of atoms, which are made up of interacting subatomic particles, and in everyday as well as scientific usage, "matter" generally includes atoms and anything made up of them, and any particles and objects that act as if they have both rest mass and volume. However it does not include massless particles such as photons, or other energy phenomena or waves such as light or sound. Matter exists in various states (known as phases) that are defined by various physical properties, such as state of matter, phase, shape, and density. The Standard Model of particle physics and the general theory of relativity describe fundamental particles and the fundamental forces acting between them that control the structure and dynamics of matter.

Classification and Properties of Matter

In chemistry and physics, matter is any substance that has mass and takes up space by having volume. All everyday objects that can be touched are ultimately composed of atoms, which are made up of interacting subatomic particles, and in everyday as well as scientific usage, "matter" generally includes atoms and anything made up of them, and any particles and objects that act as if they have both rest mass and volume. However it does not include massless particles such as photons, or other energy phenomena or waves such as light or sound. Matter exists in various states (known as phases) that are defined by various physical properties, such as state of matter, phase, shape, and density. The Standard Model of particle physics and the general theory of relativity describe fundamental particles and the fundamental forces acting between them that control the structure and dynamics of matter.

Recommended textbook solutions

Fundamentals of Physics

10th EditionDavid Halliday, Jearl Walker, Robert Resnick

8,900 solutions

Atkins Physical Chemistry

10th EditionJulio de Paula, Peter Atkins

1,315 solutions

Engineering Electromagnetics and Waves

2nd EditionAziz Inan, Ryan Said, Umran S Inan

383 solutions

Physics for Scientists and Engineers, Vol. 1 (Chs 1-20)

4th EditionGiancoli

3,457 solutions

Answer the following questions and then press 'Submit' to get your score.

Question 1

Energy is measured in which of the following units?

a) Kelvin

b) Joule

c) Pascal

d) mol

Question 2

The formation of a chemical bond releases energy. True or false?

a) True

b) False

Question 3

Which one of the following statements regarding energy is false?

a) The total energy in a chemical universe (a system and its surroundings) is constant

b) Energy can be converted from one form to another

c) The energy stored in chemical bonds is referred to as kinetic energy

d) An object suspended in the air has more energy than an object lying on the ground

Question 4

In which direction does the transfer of energy as heat happen spontaneously?

a) From cold to hot

b) From hot to cold

Question 5

Which one of the following statements best describes the enthalpy change of a reaction?

a) The energy released when chemical bonds are formed during a chemical reaction

b) The energy consumed when chemical bonds are broken during a chemical reaction

c) The difference between the energy released by bond formation and the energy consumed by bond cleavage during a chemical reaction

d) The increase in disorder of the system as a reaction proceeds

Question 6

Enthalpy is represented by which of the following symbols?

a) H

b) K

c) S

d) U

Question 7

Which of the following terms describes a reaction in which there is a net transfer of energy from a system to its surroundings - that is, where more energy is released by bond formation than is consumed by bond cleavage?

a) Exothermic

b) Endothermic

Question 8

The enthalpy of combustion of glucose is -2808 kJ mol-1. Which one of the following statements regarding this process is false?

a) The products of the combustion of glucose are less stable than glucose itself

b) This process is exothermic

c) Overall, energy is liberated when this process happens

Question 9

When a polypeptide chain folds to adopt its characteristic three-dimensional state, its entropy increases. True or false?

a) True

b) False

Question 10

Which of the following statements regarding the Gibbs free energy change for a reaction is false?

a) The Gibbs free energy change is the proportion of the enthalpy change of a reaction that is used to increase the entropy.

b) If the Gibbs free energy change for a reaction is negative, the reaction happens spontaneously.

c) The Gibbs free energy is represented by the symbol G

d) A reaction with a negative Gibbs free energy change of reaction is called an exergonic reaction.