Suppose that the pressure of an ideal gas mixture remains constant at 1800 pa (1 pa = 1n/m2) and the temperature is increased from 250k to 750k. a. if the original volume of the gas was 0.15 m3, what is the final volume? b. what is the change in volume for this process? c. how much work does the gas do on the surroundings during the expansion? d. if the initial volume was 0.24m3 and the same tempera- ture change occurred, would the work done be the same as in the first case? show by repeating the steps of the first three parts. e. is the same amount of gas involved in these two situa- tions? explain.

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)

Which word expression describes how much to calculate pressure

How many meters will a car travel if its speed is 45 m/s in an interval of 11 seconds? question 2 options: a) 450 meters b) 495 meters c) 4.09 meters d) 498 meters