standard atmospheric pressure, the sold form of carbon dioxide called\'dry ice\'

Question

standard atmospheric pressure, the sold form of carbon dioxide called'dry ice' undergoes a phase change not to a liquid, but straight to a gas. This process is called sublimetion, and like other phase transtions, heat energy is required. In this case,it is the latent heat of sublmation, which for carbon dioxide is 573 kJ/kg at the sublimation empereture of-78.s. t 130 g af dry ice s dropped into 0.50 L of weter at room temperature (20°c), how much of the water will turn to ice by the time all the dry ice has Rabinated? er. When dry ice becomes a gas, the gas bubbles out of the system. ig

Explanation / Answer

heat lost by dry carbon dioxide = heat gained by water

mc L = mw c (20 - 0 )

(0.136) (573000) = (0.5) (4186) (20) + m (334000)

m = 0.108 kg

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