Answer :
Final answer:
The initial conditions of nitrogen as it enters the heat exchanger are 150kPa, 10°C, and 116m/s, making Option A the correct choice.
Explanation:
The initial conditions of nitrogen as it enters the steady-flow heat exchanger are provided in the question. These conditions include the pressure, temperature, and velocity of nitrogen. Specifically, nitrogen enters the heat exchanger at a pressure of 150kPa, a temperature of 10°C, and a velocity of 116 meters per second (m/s). Therefore, the correct option that describes the initial pressure, temperature, and velocity of nitrogen as it enters the steady-flow heat exchanger is Option A: 150kPa, 10°C, 116(m)/s.