For steady state flow in a heat exchanger at approximately atmospheric pressure, what is the heat transferred when 12 moles of propane are heated from 250 °C to 1200 °C?

Please solve the question as soon as possible

Please help me answer a and b with diagram, asap. Thank you!

i need the answer quickly

1. Oil enters the tube side of a shell-and-tube heat exchanger with a flow rate of 5.04 kg/s (c, = 2.09 kJ/kg-K; p = 900 kg/m3) and it is cooled from 366.5 K to 344.3 K by 2.02 kg/s of water entering at 283.2 K. The overall heat-transfer coefficient U, is 340 W/m2-K. The tubes have an outside diameter of 60.33 mm and inside diameter of 52.50 mm (use outside diameter for surface area, use inside diameter for mass flow rate in tubes). The velocity of the oil is 0.100 m/s. Calculate the number tubes and tube passes if space constraint limits the tube length to be 1.50 m and lesser and shell pass is only 1. Figure 10-8 | Corection-factor plot for exchanger with one shell pass and two, four, or any multiple of tube passes. 12

I need the answer as soon as possible

plz write neatly, do not copy and paste solution

Answer: 24.187 °C

4- Consider a wall (20x40) cm [k=12 w/m °C is heated by convection on one side and cooled by convection on the other side. What is the heat transfer. Draw he temperature curve the through the wall. L = 2 m AX=0.05 m ºC, Too2 = 20 °C, T, = 100 h₁ = 30 w/m²K, h₂ = 13 w/m² K

For a single phase system, what happens to its internal energy when the temperature goes up? Why is this fact limited to a single phase system?