Phase Diagrams

This phase diagram belongs to?

• Carbon dioxide

• Oxygen

• Water

• Supercritical fluid

Tags

NGSS.HS-PS3-4

Water exists as a _____________ at 3 mmHg and 50 °C.

• Solid

• Liquid

• Gas

• Supercritical fluid

Tags

NGSS.HS-PS3-4

At 10 atm, dry ice is heated from -100 °C to 30 °C. What changes occur?

• Freezing, then condensation

• Melting only

• Sublimation only

• Melting, then boiling

Tags

NGSS.HS-PS3-4

The pressure is increased on a sample of water at 0 °C from 0 mmHg to 800 mmHg. In order, what changes occur?

• Deposition then melting

• Sublimation then melting

• Condensation then freezing

• Deposition then freezing

Tags

NGSS.HS-PS3-4

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

• Solid

• Liquid

• Gas

• Supercritical fluid

Which best describes phase changes that occurs at letter B?

• Liquid to solid

• Liquid, solid-liquid equilibrium to solid

• Solid to liquid

• Vapour to liquid

Tags

NGSS.HS-PS3-4

What state of matter is X?

• solid 
• liquid
• gas
• supercritical fluid

What state of matter is Y?

• solid 
• liquid
• gas
• supercritical fluid

Tags

NGSS.HS-PS3-2

NGSS.HS-PS3-4

What change occurs from F to E?

• sublimation
• deposition
• melting
• condensation

What change occurs from E to C?

• sublimation
• freezing
• melting
• boiling