# Chapter 16.

## Presentation on theme: "Chapter 16."— Presentation transcript:

Chapter 16

The pressure in a system is measured to be 60 kPa
The pressure in a system is measured to be 60 kPa. At a later time the pressure is 40 kPa. The value of ∆p is 1. –40 kPa. 2. –20 kPa. kPa. kPa. kPa. STT16.1

The pressure in a system is measured to be 60 kPa
The pressure in a system is measured to be 60 kPa. At a later time the pressure is 40 kPa. The value of ∆p is 1. –40 kPa. 2. –20 kPa. kPa. kPa. kPa. STT16.1

Which system contains more atoms:
5 mol of helium (A = 4) or 1 mol of neon (A = 20)? 1. Helium. 2. Neon. 3. They have the same number of atoms. STT16.2

Which system contains more atoms:
5 mol of helium (A = 4) or 1 mol of neon (A = 20)? 1. Helium. 2. Neon. 3. They have the same number of atoms. STT16.2

The temperature of a glass of water increases from 20°C to 30°C
The temperature of a glass of water increases from 20°C to 30°C. What is ∆T? K K K K STT16.3

The temperature of a glass of water increases from 20°C to 30°C
The temperature of a glass of water increases from 20°C to 30°C. What is ∆T? K K K K STT16.3

For which is there a sublimation temperature that is higher than a melting temperature?
1. Carbon dioxide 2. Water 3. Both 4. Neither STT16.4

For which is there a sublimation temperature that is higher than a melting temperature?
1. Carbon dioxide 2. Water 3. Both 4. Neither STT16.4

1. Thelium < Tnitrogen 2. Thelium = Tnitrogen
You have two containers of equal volume. One is full of helium gas. The other holds an equal mass of nitrogen gas. Both gases have the same pressure. How does the temperature of the helium compare to the temperature of the nitrogen? 1. Thelium < Tnitrogen 2. Thelium = Tnitrogen 3. Thelium > Tnitrogen STT16.5

1. Thelium < Tnitrogen 2. Thelium = Tnitrogen
You have two containers of equal volume. One is full of helium gas. The other holds an equal mass of nitrogen gas. Both gases have the same pressure. How does the temperature of the helium compare to the temperature of the nitrogen? 1. Thelium < Tnitrogen 2. Thelium = Tnitrogen 3. Thelium > Tnitrogen STT16.5

What is the ratio Tf /Ti for this process?
1. 4 2. 2 3. 1 (no change) 4. 5. STT16.6

What is the ratio Tf /Ti for this process?
1. 4 2. 2 3. 1 (no change) 4. 5. STT16.6

What is the SI unit of pressure?
1. The Nm2 (Newton-meter-squared) 2. The atmosphere 3. The p.s.i. 4. The Pascal 5. The Archimedes IG16.1

What is the SI unit of pressure?
1. The Nm2 (Newton-meter-squared) 2. The atmosphere 3. The p.s.i. 4. The Pascal 5. The Archimedes IG16.1

The ideal gas model is valid if
1. the gas density is low. 2. the gas density is high. 3. the temperature is low. 4. the gas pressure is large. 5. none of the above IG16.3

The ideal gas model is valid if
1. the gas density is low. 2. the gas density is high. 3. the temperature is low. 4. the gas pressure is large. 5. none of the above IG16.3

An ideal-gas process in which the volume doesn’t change is called
1. isobaric. 2. isothermal. 3. isochoric. 4. isentropic. IG16.4

An ideal-gas process in which the volume doesn’t change is called
1. isobaric. 2. isothermal. 3. isochoric. 4. isentropic. IG16.4