Question: 3- A device for converting thermal or mechanical energy into kinetic energy a) Pump b) Throttling valve c) Expander d) Nozzle 4- A mixture of

3- A device for converting thermal or mechanical energy into kinetic energy a) Pump b) Throttling valve c) Expander d) Nozzle 4- A mixture of various chemical elements of compounds also qualifies as a pure substance because a) It has a uniform chemical composition b) it exists in more than one phase. c) It has a uniform pressure d) It has a uniform temperature
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