Pressure a Isothermal expansion Adiabatic compression Adiabatic expansion C -Isothermal compression Volume Consider the reversible Carnot cycle shown above with 1 mol of an ideal gas with Cv = 1.5 as the working substance. Step 1: The initial isothermal expansion occurs at the hot reservoir temperature of Thot = 600°C from an initial volume of 3.50 L (V₂) to a volume of 10.0 L (Vb). Step 2: The system then undergoes an adiabatic expansion until the temperature falls to Tcold = 150°C. Steps 3 and 4: The system then undergoes an isothermal compression and a subsequent adiabatic compression until the initial state described by T₂ = 600°C and V₂ = 3.50 L is reached. R = 8.314 J mol-1K- Find - Vc and Vd (in liters) - Wtotal (a sum-total of work done in each step in the cycle) (in kJ) - & (efficiency) (no units) Follow a consistent sign convention. Work done due to expansion must have the same sign, and work due to compression must have the opposite sign.

5. Describe the two main ways to calculate the molecular weights of polymers.

Copolymers can possess four different arrangements of their constituent mers. Name and briefly describe the four arrangements.