. Write down the name and molecular formula of a compound which gives hydrogen ion and chloride ion in the solution state. In which colour is the methyl orange changed after treating it with this compound? Why? Write the name of salt when the compound is treated with lime water. Write down the chemical equation. 60

Arefrigerator uses r-134a as the working fluid and operates on the ideal vapor-compression refrigeration cycle except for the compression process. the refrigerant enters the evaporator at 120 kpa with a quality of 34 percent and leaves the compressor at 70°c. if the compressor consumes 450 w of power, determine (a) the mass flow rate of the refrigerant, (b) the condenser pressure, and (c) the cop of the refrigerator. (0.00644 kg/s, 800 kpa, 2.03)