STG330 Quiz 2 practice

Compared to saturated vapors, superheated vapors have ​ (a)   temperatures at the same pressure.

• higher
• lower
• equal

What is the specific volume in m³/kg of water at 125C and 750 kPa? Use the same format the textbook does.

If water has a specific volume of 0.035 m³/kg at 140C, how would you describe its phase?

• Saturated mixture

• Saturated liquid

• Compressed liquid

• Superheated vapor

Water at 300C and 1803 kPa is a compressed liquid.

• True

• False

Water at 550 kPa and a specific volume of 0.001097 m³/kg is superheated.

• True

• False

Tags

NGSS.HS-PS3-4

R-134a has a pressure of 80 psia and an enthalpy of 78 Btu/lbm. What is its phase description?

Tags

NGSS.HS-PS3-4

R-134a has a quality of 1 and a temperature of 110F. What is its pressure in psia?

R-134a at 10F and 70psia has a quality of 0.2.

• True

• False

R-134a has a temperature of 20C and an internal energy of 95 kJ/kg. Its phase is

• Compressed liquid

• Saturated liquid

• Saturated mixture

• Saturated vapor

• Superheated vapor

Label the compressed liquids region of the T-v diagram.