You need to size a continuous vaporizer for a child's sick room. The device receives liquid water at 20 degrees C and 1 atm and produces steam at a rate of 0.7g/min. At what rate must energy be supplied if the device is 100% efficient? The standard heat of vaporization of water is 2256.9 kJ/kg and the specific heat capacity of water is 1cal/(g*C)