Please help !! Please solve for c
90 grams of hematite react with the monoxide that is produced from the reduction with 4.48 l CO2 . a) reaction of carbon monoxide b) reaction of hematite production c) find purity of 90 g hematite

Waves that cause the most damage during an earthquake are a. surface waves c. s waves b. p waves d. ocean waves

What is the freezing point of radiator fluid that is 50% antifreeze by mass? kf for water is 1.86 ∘c/m.

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)