Triple Point

The pressure is increased on a sample of water at 0 °C from 4.58 mmHg to 800 mmHg. What change occur?

• melting

• sublimation

• condensation

• freezing

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

At 1 atm, substance is heated from -100 °C to 30 °C. What changes occur?

• freezing, then condensation

• melting only

• sublimation only

• melting, then boiling

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What change occurs from D to C?

• sublimation

• deposition

• melting

• condensation

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-2

NGSS.MS-PS3-4

A sample of this substance at 0.75 atm and 30^o C is heated to 60^o C at constant pressure, what phase transition occurs?

• freezing

• melting

• evaporation

• condensation

Tags

NGSS.MS-PS1-4

The temperature and pressure conditions at which the solid, liquid, and gas phases of a substance exist at the same time is called the

• Critical point

• Triple point

• Melting point

• Boiling point

What change occurs from E to C?

• sublimation

• freezing

• melting

• boiling

Tags

NGSS.MS-PS1-4

Water exists as a _____________ at 700 mmHg and 50 °C.

• solid

• liquid

• gas

• supercritical fluid

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

If the substance is originally at the temperature and pressure of point D, what changes must occur to reach the triple point?

• increase both temperature and pressure

• decrease both temperature and pressure

• increase temperature, decrease pressure

• increase pressure, decrease temperature

Tags

NGSS.MS-PS1-4

If the substance has reached the triple point, what changes must occur in order for it to be a solid only?

• decrease temperature

• decrease both temperature and pressure

• decrease pressure

• increase temperature

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is the triple point of water?

• 0°C and 1 atm

• 100°C and 1 atm

• 0.01°C and 0.006 atm

• -273.15°C and 0 atm

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4