Final answer:
To find the Celsius temperature for a pressure of 103 kPa, we refer to vapor pressure graphs or tables. Vapor pressure of water increases with temperature, and near standard atmospheric pressure (101.3 kPa), water boils at 100°C. Without specific data, we can't provide the exact temperature but infer it's close to 100°C, so the closest provided option is 92°C.
The correct option is B.
Step-by-step explanation:
The question asks about the Celsius temperature corresponding to a pressure of 103 kPa, which implies finding the temperature at which water's vapor pressure reaches 103 kPa.
To solve this problem, we can refer to a graph or table of the vapor pressure of water versus temperature.
For example, if a table indicates that the vapor pressure of water is 68 kPa at about 90°C, then the temperature at which the vapor pressure is 103 kPa would be higher than 90°C but less than 100°C because the standard atmospheric pressure is about 101.3 kPa at 100°C.
Using the provided information, none of the listed options (78°C, 92°C, 109°C, 118°C) directly correspond to a known temperature-pressure point.
However, by understanding that vapor pressure increases with temperature, we infer the temperature required for 103 kPa is near the boiling point of water at standard atmospheric pressure, which is 100°C.
Since option B (92°C) is the closest to this, it is the most likely answer assuming a normal graph or table is used.
However, without a specific graph or table to reference, we cannot provide a definite answer, and we would need more data to calculate the exact temperature.
The correct option is B.