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The heat needed for a change of state of a material without changing the temperature is called what?

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The heat needed for a change of state of a material without changing the temperature is called what?

(a) Sensible heat

(b) Latent heat

(c) Calorific heat

(d) Specific heat

This question was addressed to me in an interview.

This interesting question is from Heating and Pouring in section Preventive Maintenance in Foundries & Metal Casting Process of Casting-Forming-Welding I

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Correct choice is (b) Latent heat

For explanation: The heat needed for a change of state of a material without changing the temperature is called as latent heat. Latent heat is also referred to as hidden heat.

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