Thermal energy is being added to steam at 475.8 kPa and 75% quality. determine the amount of thermal energy to be added to create saturated steam. what is the temperature of the 75% quality steam.?

Explanation:

Let assume that heating process occurs at constant pressure, the phenomenon is modelled by the use of the First Law of Thermodynamics:

The specific enthalpies are:

Liquid-Vapor Mixture:

Saturated Vapor:

The thermal energy per unit mass required to heat the steam is:

the equation above shows how temperature f, measured in degrees fahrenheit, relates to a temperature c, measured in degrees celsius. based on the equation, which of the following must be true?

a temperature increase of 1 degree fahrenheit is equivalent to a temperature increase of

5

9

degree celsius.

a temperature increase of 1 degree celsius is equivalent to a temperature increase of 1.8 degrees fahrenheit.

a temperature increase of

5

9

degree fahrenheit is equivalent to a temperature increase of 1 degree celsius.

a) i only

b) ii only

c) iii only

d) i and ii only