Chemistry, asked by dinesh8857, 1 year ago

latent heat of dry ice

Answers

Answered by Anonymous
1
latent hrat of ice when it converts in water is I.e latent heat of fusion is ..80cal/gm
and latent heat of freezing I.e when water converts in ice is _80cal/gm
Answered by Anuragsaxenaofficial
1

At atmospheric pressure, sublimation/deposition occurs at −78.5 °C (−109.3 °F) or 194.65 K. ... The low temperature and direct sublimation to a gas makes dry ice an effective coolant, since it is colder than water ice and leaves no residue as it changes state. Its enthalpy of sublimation is 571 kJ/kg (25.2 kJ/mol).


dinesh8857: 571 kj/kg is latent heat of dry ice
dinesh8857: 250kg of chicken at 0 degree Celsius,we have to maintain for 12hrs,and ambient temperature is 29 degree,then how much quantity (kg) of dry ice required?? plz can solve this
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