CHAPTER 19
What is the name of an ideal-gas process in which no heat is transferred?
Adiabatic
How can work done on a gas be determined?
Area under the curve
Does heat describe a property of a system, an interaction of the system with its environment, or both?
Heat describes interaction of the system with its environment and does not describe property of a system.
Two liquids, A and B, have equal masses and equal initial temperatures. Each is heated for the same length of time over identical burners. Afterward, liquid A is hotter than liquid B. Which has the larger specific heat?
Liquid B
Two containers hold equal masses of nitrogen gas at equal temperatures. You supply 10 J of heat to container A while not allowing its volume to change, and you supply 10 J of heat to container B while not allowing its pressure to change. Afterward, is temperature TA greater than, less than, or equal to TB?
TA > TB
Does temperature describe a property of a system, an interaction of the system with its environment, or both?
Temperature describes a property of a system and does not describe interaction of the system with its environment. Submit
The specific heat capacity of aluminum is about twice that of iron. Consider two blocks of equal mass, one made of aluminum and the other one made of iron, initially in thermal equilibrium. When the two materials have reached thermal equilibrium, the block of aluminum is cut in half and equal quantities of heat are added to the iron block and to each portion of the aluminum block. Which of the following statements is true?
The blocks remain in thermal equilibrium.
The specific heat capacity of aluminum is about twice that of iron. Consider two blocks of equal mass, one made of aluminum and the other one made of iron, initially in thermal equilibrium. Heat is added to each block at the same constant rate until it reaches a temperature of 500 K. Which of the following statements is true?
The iron takes less time than the aluminum to reach the final temperature.
Does thermal energy describe a property of a system, an interaction of the system with its environment, or both?
Thermal energy describes a property of a system and does not describe interaction of the system with its environment.
True or False: As the volume increases, the gas does positive work on the environment, meaning the work done on the gas is negative.
True
What quantities appear in the first law of thermodynamics?
Work, heat, and thermal energy
Heat is
the energy that moves from a hotter object to a colder object.
