A laboratory researcher uses liquid nitrogen to cool a high-temperature superconducting sensor. During the process, some liquid nitrogen vaporises at its boiling point.
Calculate the thermal energy absorbed to vaporise 165 g of liquid nitrogen at its boiling point. The specific latent heat of vaporisation of nitrogen, LLL, is 1.99 × 105 J/kg.
Use the equation:
E=m×L E = m \times L E=m×LPractise Edexcel GCSE Physics Heating, specific heat and latent heat with exam-style questions for Foundation and Higher tier. 81 questions, matched to the Edexcel GCSE Physics (1PH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.