The following data are given for a certain rocket unit: Thrust, 8000 N Propellant weight flow rate, 36 N/sec Speed of rocket, 800 m/s internal efficiency 32% combustion efficiency 97 %  Determine (a) the effective velocity; (b) total kinetic energy per second (c) calorific value of propellant

Q 12 please

OBB Occ ODD QUESTION 7 What is the entropy change for an energy reservoir at 700°C that transfers 1500KJ of heat to a heat engine? (5 Points) Please include your calculations in the PDE submission and mark your answer on Blackboard. QUESTION 8 Calculate the entropy change, in kJ/K, of 10 kg of silver when its temperature increases from 20°C to 100°C (cy of silver 0 235 kJkgk) (5 Points) Please include your calculations in the PDE submission and mark your answer.on Blackboard. QUESTION 9 An engineer claims that they designed a nozzle that increases the velocity of air flow from 50 m/s to 100 m/s. However, due to unforeseen issues, the exit velocity is measured as 75 m/s Find the isentropic efficiency of this nozzle. (5 Points) Please include your calculations in the PDF submission and mark your answer on Blackboard, QUESTION 10 Steam enters in an adiabatic turbine steadily at 4 MPa and 85% quality, Steam leaves the turbine as saturated vapor at 10°C If the mass flow rate of the steam is…

Synthetic Natural Gas (SNG from a US based plant) has the molar composition: 96.59% CH4, 1.29% H2, 0.22% CO and 1.9% CO2. Calculate the GCV and NCV in:a) MJ/kgmol (Ans. 864.88; 779.24)b) kcal/gmol (Ans. 206.56; 186.11)c) kcal/kg (Ans. 12612.19 ; 11363.55)d) kcal/SCM (Ans. 8593.04; 7742.12)