Transcription of Cambridge International AS & A Level
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Cambridge International AS & A Level
Cambridge International AS & A Level *0123456789*. CHEMISTRY 9701/04. Paper 4 A Level Structured Questions For examination from 2022. SPECIMEN PAPER 2 hours You must answer on the question paper. No additional materials are needed. INSTRUCTIONS. Answer all questions. Use a black or dark blue pen. You may use an HB pencil for any diagrams or graphs. Write your name, centre number and candidate number in the boxes at the top of the page. Write your answer to each question in the space provided. Do not use an erasable pen or correction fluid. Do not write on any bar codes. You may use a calculator.
3 S 2019 970104S22 [Turn over 2 The feasibility of a chemical reaction depends on the standard Gibbs free energy change, ∆Gɵ. This is dependent on the standard enthalpy and entropy changes, and the temperature. (a)State and explain whether the following processes will lead to an increase or decrease in entropy. (i)the reaction of magnesium with hydrochloric acid
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