An Otto cycle engine operates with the cycle shown below. The air in the engine can be considered a perfect gas with k = 1.402, R = 0.28 kJ/kgk and cv = 0.71 kJ/kgK. The engine has the following known states: State 1: p₁ = 1bar, V₁ = 0.5x10-³ m³, T₁ = 300k State 2: T₂ = 725K, rc = 9 State 3: T3 = 2196.1 K P 3 What is the specific heat transfer from state 1-2? Please enter your answer in kJ/kg Answer:

An Otto cycle engine operates with the cycle shown below. The air in the engine can be considered a perfect gas with k = 1.402, R = 0.28 kJ/kgk and cv = 0.71 kJ/kgK. The engine has the following known states: State 1: p₁ = 1bar, V₁ = 0.5x10-³ m³, T₁ = 300K State 2: T₂ = 725K, rc = 9 State 3: T3 = 2196.1 K Р 3 Answer: 2 What is the specific internal energy at state 2? Please enter your answers in kJ/kg.

Two ideal Brayton cycles (see Figure below) have the same inlet temperature and the same maximum temperature of the turbine inlet. Brayton Cycle A has a higher compression ratio than Cycle B. Which of the following statements is true about the cycles? Cycle A has a higher thermal efficiency and Cycle B has a higher work net for a given mass flow rate.   Cycle B has a higher thermal efficiency and a higher work net for a given mass flow rate.   Since the temperatures are the same the efficiencies and work net are also the same.   Cycle A has a higher work net for a given mass flow rate and Cycle B has a higher thermal efficiency.   Cycle A has a higher thermal efficiency and a higher work net for a given mass flow rate.

An Otto cycle engine operates with the cycle shown below. The air in the engine can be considered a perfect gas with k = 1.402, R = 0.28 kJ/kgk and c, = 0.71 kJ/kgK. The engine has the following known states: State 1: p₁ = 1bar, V₁ = 0.5x10-3 m³, T₁ = 300K State 2: T₂ = 725K, rc = 9 State 3: T3 = 2196.1 K Р What is the specific heat transfer from state 3-4? Please enter your answer in kJ/kg Answer: