Oxy-Acetylene welding is a process where the metal is heated by an intensely hot flame from a gas-fed blowtorch. The welding set consists of two steel cylinders that contain oxygen & argon gases

An ideal otto cycle with air as the working fluid has a compression ratio of 8. the minimum and maximum temperatures in the cycle are 300 k and 1340 k. use constant specific heats at room temperature to determine (a) the amount of heat transferred to the air during the heat- addition kj/kg, (b) the thermal efficiency, and (c) the thermal efficiency of a carnot cycle ope limits. process, in rating between the same temperature