Question

its boiling point, stored in a vacuum flask. The boiling point of nitrogen is -196 °C.
The liquid nitrogen reaches its boiling point of -196 °C. A small piece of metal at 20 °C is lowered slowly into the liquid nitrogen. Bubbles form within the liquid nitrogen as it boils. The small piece of metal has a mass of 50 g. When it is lowered into the liquid nitrogen, the metal cools to -196 °C. The specific heat capacity of the metal is 0.39 J/(g K). The specific latent heat of vaporization of nitrogen is 200 J/g. (i) Calculate the thermal energy lost by the metal as it cools

Answer 1

Explanation:

its boiling point, stored in a vacuum flask. The boiling point of nitrogen is -196 °C.

The liquid nitrogen reaches its boiling point of -196 °C. A small piece of metal at 20 °C is lowered slowly into the liquid nitrogen. Bubbles form within the liquid nitrogen as it boils. The small piece of metal has a mass of 50 g. When it is lowered into the liquid nitrogen, the metal cools to -196 °C. The specific heat capacity of the metal is 0.39 J/(g K). The specific latent heat of vaporization of nitrogen is 200 J/g. (i) Calculate the thermal energy lost