14. The Temperature at which a
substance from liquid to gas
A. melting point
B. boiling point
C. freezing point
D. all of the above
15. The condition that is necessary for heat transier to occur is called
A. the two objects must be different in temperature
B. the two objects must have the same temperatura
C, the two object must have the same mass
D. none of the above
Share
Answer:
14. A. Boiling point
15. A. The two objects must be different in temperature
Explanation:
14. This means that the temperature at which a liquid becomes a gas, the boiling point, can change with surrounding pressure. Therefore, we define the normal boiling point as the temperature at which a liquid changes to a gas when the surrounding pressure is exactly 1 atm, or 760 torr.
15. The factor or condition that is necessary for heat transfer to occur is that two object 'must have different temperature'. Heat Transfer can occur in three ways: Conduction, Convection, and Radiation