Chapter 1.6, Problem 3E

A)

Interpretation Introduction

Identify the following system and process is,

• • steady state, at equilibrium, or neither.
• • Isothermal, isobaric, isochoric, adiabatic closed, or open system is applicable or not

System: An ice cube

Process: The ice cube is inside a freezer, where is has already been for some time before the process begins. The process lasts 24 hours, during which the freezer door is never opened.

B)

Interpretation Introduction

Identify the following system and process is,

• • steady state, at equilibrium, or neither.
• • Isothermal, isobaric, isochoric, adiabatic closed, or open system is applicable or not

System: An ice cube

Process: The ice cube is inside a freezer. The freezer door is opened, allowing room temperature air in. The door is open for one minute, and the process ends 10 minutes after the door is closed.

C)

Interpretation Introduction

Identify the following system and process is,

• • steady state, at equilibrium, or neither.
• • Isothermal, isobaric, isochoric, adiabatic closed, or open system is applicable or not

System: The air inside a hot air balloon.

Process: The balloon rises from the ground to a height of 1000 feet.

D)

Interpretation Introduction

Identify the following system and process is,

• • steady state, at equilibrium, or neither.
• • Isothermal, isobaric, isochoric, adiabatic closed, or open system is applicable or not

System: The air inside a hot air balloon

Process: The balloon floats, stationary, 1000 feet above the ground. The air in the balloon is maintained at a constant temperature.

E)

Interpretation Introduction

Identify the following system and process is,

• • steady state, at equilibrium, or neither.
• • Isothermal, isobaric, isochoric, adiabatic closed, or open system is applicable or not

System: A wood furnace and its contents

Process: Wood is piled inside the furnace. When the process begins, the wood is already burning and the furnace and its contents are at a uniform T = 300°F. At the end of the process, 10 minutes later, the temperature is still a uniform T = 300°F.

F)

Interpretation Introduction

Identify the following system and process is,

• • steady state, at equilibrium, or neither.
• • Isothermal, isobaric, isochoric, adiabatic closed, or open system is applicable or not

System: A section of a water pipe

Process: Water is flowing through the pipe at a constant flow rate and a constant, uniform temperature.

G)

Interpretation Introduction

Identify the following system and process is,

• • steady state, at equilibrium, or neither.
• • Isothermal, isobaric, isochoric, adiabatic closed, or open system is applicable or not

System: The water in a sink

Process: The process begins immediately after the faucet is turned off. The water is initially at 90°F, the ambient air is at 70°F. The process Continues for 24 hours, during which evaporation is negligible and no water is added or removed.

H)

Interpretation Introduction

Identify the following system and process is,

• • steady state, at equilibrium, or neither.
• • Isothermal, isobaric, isochoric, adiabatic closed, or open system is applicable or not

System: Your body

Process: You are stationary and immersed in bathwater at 98.6°F throughout the process.