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Question

A steam nozzle converts

A.

 Kinetic energy into heat

B.

 Heat energy into potential energy


C.

 Potential energy into heat

D.

 Heat energy into kinetic energy

Answer ( Option D)

 Heat energy into kinetic energy

Solution

A steam nozzle converts heat energy of steam into kinetic energy. High pressure, high temperature steam expands in nozzles and comes out at a high velocity.

Hence, the correct option is (D).

&Key Points:-

Nozzles are mechanical device which uses a reduction in surface area to convert thermal energy to kinetic energy (enthalpy to kinetic energy).


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