engineering recuitment BHEL Engineer Trainee Mock Test 2025 Thermodynamics First Law of Thermodynamics Steady Flow Energy Equation
The steady flow energy equation (SFEE) of a thermodynamic process is given by \(m\left( {{h_1} + \;\frac{{v_1^2}}{2} + g{z_1}} \right) + Q = m\;\left( {{h_2} + \frac{{v_2^2}}{2} + g{z_2}} \right) + W\)
Which of the following statement is INCORRECT?
1
For turbines ⇒ W = m (h1 - h2)
2
For nozzles and diffusers ⇒ \({h_1} + \frac{{v_1^2}}{2} = {h_2} + \frac{{v_2^2}}{2}\)
3
For throttling processes ⇒ h1 = h2
4
For boilers, condensers and heat exchangers ⇒ Q = m (h1 - h2)