Question: In a physics lab, a student accidentally drops a 25.0-g brass washer into an open dewar of liquid nitrogen at 77.2 K. How much liquid

In a physics lab, a student accidentally drops a 25.0-g brass washer into an open dewar of liquid nitrogen at 77.2 K. How much liquid nitrogen boils away as the washer cools from 293 K to 77.2 K? The latent heat of vaporization for nitrogen is 199.1 kJ/kg.

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