MCQOPTIONS
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				| 1. | 
                                    _ A process, in which the temperature of the working substance remains constant during its expansion or compression, is called$? | 
                            
| A. | Adiabatic process | 
| B. | Isothermal process | 
| C. | Hyperbolic process | 
| D. | Polytropic process | 
| Answer» C. Hyperbolic process | |