Assuming ideal gas behavior, determine the speed of sound in refrigerant-134a at 0.8 mpa and 55°c. the gas constant of r-134a is r = 0.08149 kj/kg·k. its specific heat ratio at room temperature is k = 1.108. the speed of sound in refrigerant-134a is m/s.

A0.750 kg aluminum pan is removed from the stove and plunged into a sink filled with 10.0 kg of water at 293 k. the water temperature quickly rises to 297 k. what was the initial temperature of the aluminum pan? the specific heat of aluminum is ca = 900 j/(kgk) and water is cw = 4190 j/(kgk)