The refrigerator is used to keep the freezing space at 1 degree C by absorbing heat from freezing space when environment temperature is 20 degree C. Freezing space supplies heat at the rate of 1000 kJ/s and condenser removes heat at the rate of 500 kJ/s to environment and refrigerator consumes 50 kW of electric power when running. Is the refrigerator powerful adequate to do the job? If no, find the minimum power consumption for the job?