A thin layer of water in field is formed after a farmer has watered it. The ambient air conditions are: temperature 20 ° C and relative humidity 5%. An extract of steam tables is given below.Temperature (°C)-15-10-50.015101520Saturation pressure (kPa)0.100.260.400.610.871.231.712.34Neglecting the heat transfer between the water and the ground, the water temperature in the field after phase equilibrium is reached equals

A thin layer of water in field is formed after a farmer has watered it

1.	A thin layer of water in field is formed after a farmer has watered it. The ambient air conditions are: temperature 20 ° C and relative humidity 5%. An extract of steam tables is given below.Temperature (°C)-15-10-50.015101520Saturation pressure (kPa)0.100.260.400.610.871.231.712.34Neglecting the heat transfer between the water and the ground, the water temperature in the field after phase equilibrium is reached equals
A.	10.3 °C
B.	-10.3 °C
C.	-14.5 °C
D.	14.5 °C
Answer» D. 14.5 °C

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A thin layer of water in field is formed after a farmer has watered it. The ambient air conditions are: temperature 20 ° C and relative humidity 5%. An extract of steam tables is given below.Temperature (°C)-15-10-50.015101520Saturation pressure (kPa)0.100.260.400.610.871.231.712.34Neglecting the heat transfer between the water and the ground, the water temperature in the field after phase equilibrium is reached equals
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