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18-01-2024
Physics

Answered

Liquid nitrogen, which has a boiling point of 77 K, is commonly used to cool substances to low temperatures. How much energy must be removed from 1 kg of gaseous nitrogen at 77 K for it to completely liquefy?

How much energy is required to change a 42 g ice cube from ice at - 11°C to steam at 111ºC?

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