A 0.500kg block of ice at -15.0°C initially is placed in a square room with a wall length of 8.00 feet. If the final temperature of both the water and room are 20.0°C, determine the initial temperature of the room. (Assume all heat in the water is absorbed from the room's air which will behave as an ideal gas ending at a constant pressure of 1 atm). Average molar mass of air is 28.9g·mol?¹, cair= 1.0 J·g?¹·°C?¹, cice=2.06 J·g?¹·°C?¹, cliquid water=4.18 J·g?¹·°C?¹, and ΔHfus=6.00kJ·mol?¹.