Before partacting, if correct marked as brainest

What is meant by the statement" the melting poin of glycerine is 13 degree celsius

Which of the following are used in an electrochemical cell? a. electrodes b. electrolyte c. terminals d. all of the above

6–43 a food department is kept at 2128c by a refrigerator in an environment at 308c. the total heat gain to the food department is estimated to be 3300 kj/h and the heat rejection in the condenser is 4800 kj/h. determine the power input to the compressor, in kw and the cop of the refrigerator.