Use your answers from questions 1-3 as the basis for the first section of your lab report. This section provides
your reader with background information about why you conducted this experiment and how it was completed.
Outline the steps of the procedure in full sentences. It also provides potential answers (your hypothesisles)
relative to what you expected the experiment to demonstrate. This section should be 1-3 paragraphs in length.

Scientific models are based on current knowledge, which can limit their effectiveness when new discoveries are made.

Air enters a gas turbine with two stages of compression and two stages of expansion at 100 kpa and 17°c. this system uses a regenerator as well as reheating and intercooling – the intercooler returns the air to the inlet temperature. the pressure ratio across each compressor is 4 ; 300 kj/kg of heat are added to the air in each combustion chamber; and the regenerator operates perfectly while increasing the temperature of the cold air by 20°c. determine the system’s thermal efficiency. assume isentropic operations for all compressor and the turbine stages and use constant specific heats at room temperature. (0.378)

What is the difference between mass density and weight density?