Gas to liquid and liquid to solid conversion is: 

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RRB Technician Grade III Official Paper (Held On: 29 Dec, 2024 Shift 1)
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  1. solidification and condensation respectively 
  2. fusion and vaporisation respectively 
  3. condensation and solidification respectively 
  4. sublimation and fusion respectively 

Answer (Detailed Solution Below)

Option 3 : condensation and solidification respectively 
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The correct answer is condensation and solidification respectively.

Key Points

  • Condensation: The process of gas transforming into a liquid state.
  • Solidification: The process of liquid transforming into a solid state.
  • Condensation usually occurs when gas cools down and loses energy.
  • Solidification occurs when a liquid cools and its particles lose kinetic energy, forming a solid structure.
  • Both processes are part of the phase transitions governed by temperature and pressure conditions.

Additional Information

  • Phase Transition: The transformation from one state of matter (solid, liquid, gas) to another.
  • Melting: The process where a solid turns into a liquid.
  • Freezing: Another term for solidification, where a liquid turns into a solid.
  • Vaporization: The process where a liquid turns into a gas, including boiling and evaporation.
  • Sublimation: The process where a solid directly transitions into a gas without becoming a liquid first.
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