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Chemical Engineering · Q104

Chemical Engineering Thermodynamics

Engineering and GATE · Chemical Engineering · question 104

Q104

A nozzle is a device, which

A.
Increases kinetic energy and decreases pressure
Answer
B.
Reduces kinetic energy and increases pressure
C.
Reduces both kinetic energy and pressure
D.
Increases both kinetic energy and pressure

Answer: Option A

Solution

Answer: Option A
Solution:
Usually a nozzle is an converging duct so along the flow the area decreases so, by continuity we can say velocity increases when velocity increases (kinetic energy increases) we can say pressure decreases by bernoulli equation.