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A-Level Physics Paper 2 Questions Paper

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A-level PHYSICS Paper 2 Friday 24 May 2019 Morning Time allowed: 2 hours Materials For this paper you must have: • a pencil and a ruler • a scientific calculator • a Data and Formulae Bo ... oklet. Instructions • Use black ink or black ball-point pen. • Fill in the boxes at the top of this page. • Answer all questions. • You must answer the questions in the spaces provided. Do not write outside the box around each page or on blank pages. • If you need extra space for your answer(s), use the lined pages at the end of this book. Write the question number against your answer(s). • Do all rough work in this book. Cross through any work you do not want to be marked. • Show all your working. Information • The marks for questions are shown in brackets. • The maximum mark for this paper is 85. • You are expected to use a scientific calculator where appropriate • A Data and Formulae Booklet is provided as a loose insert. Figure 1 shows a perfectly insulated cylinder containing 0.050 kg of liquid nitrogen at a temperature of 70 K. A heater transfers energy at a constant rate of 12 W to the nitrogen. A piston maintains the pressure at 1.0 × 105 Pa during the heating process. Figure 1 Do not write outside the box 3 *03* Turn over ► IB/M/Jun19/7408/2 Do not write outside the 0 1 box . 1 The nitrogen is heated from 70 K and is completely turned into a gas after 890 s. Calculate the specific heat capacity of liquid nitrogen. Give an appropriate unit for your answer. specific latent heat of vaporisation of nitrogen = 2.0 × 105 J kg−1 boiling point of nitrogen = 77 K [5 marks [Show More]

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