The planets mars and venus have albedo values of 0.15 and 0.75, and observed surface temperatures of approximately 220 k and approximately 700 k, respectively. the average distance of mars from the sun is 2.28 × 108 km, and the average distance of venus is 1.08 × 108 km. what is the extent of the greenhouse effect for these two planets, measured in degrees kelvin?

A2-m rigid tank initially contains saturated water vapor at 100 kpa. the tank is connected to a supply line through a valve. steam is flowing in the supply line at 600 kpa and 300 c. the valve is opened, and steam is allowed to enter the tank until the pressure in the tank reaches the line pressure, at which point the valve is closed. a thermometer placed in the tank indicates that the temperature at the final state is 200°c. determine (a) the mass of steam that has entered the tank (b) the amount of heat transfer.