Gcse equilibrium questions pdf This page contains the AQA GCSE Chemistry C8 Rates and Equilibrium Questions and kerboodle answers for revision and understanding Rates and Equilibrium. 2 Reversible Reactions & Dynamic Equilibrium QP; pre-2018 papers. They allow reactions to reach equilibrium more quickly. Usually the question will give the initial amounts (moles) of the reactants, and some data that will help you work out the equilibrium amounts. %PDF-1. Use our free chemistry resources below to help you revise. C8. 6 Rate + Extent Chemical Change Sub-Topic Reversible Reacts + Dynamic Equilibrium Difficulty Level Standard Level Booklet Question Paper Time Allowed: 29 minutes Score: /29 Percentage: /100 Grade Boundaries: Questions and model answers on Reversibility & Equilibrium for the AQA GCSE Chemistry syllabus, written by the Chemistry experts at Save My Exams. 6 – 0 Conceptual Questions. 3 %Äåòåë§ó ÐÄÆ 4 0 obj /Length 5 0 R /Filter /FlateDecode >> stream x Õ [³$Çqßßϧ ¿íÚÁ£é{Ï# 2d9¬ É„Â ›z€€ÅÅ&°$@ˆÒG You need to know the definition of chemical equilibrium and dynamic equilibrium. 1 : 3 (b) (i) This tells us that the right hand side of the equilibrium produces a higher temperature. (ii)€€€€ If the mass of the tray is 0. (2) Equilibrium Question Paper Level GCSE (9-1) Subject Combined Science: Trilogy - Chemistry Exam Board AQA Topic 5. Jan 1, 2019 · Most questions first involve having to work out the equilibrium moles and then concentrations of the reactants and products. N 2 (g) + 3H 2 (g) 2NH 3 (g) (a) Explain what is meant by a dynamic equilibrium. 1 Rate of Reaction MS; 6. 1 of Cl2 and 0. GCSE AQA Combined Science Questions Back to GCSE Revision. 5 – 0. A load of mass 20 kg is attached to the plank at B. [2 marks] Nitrogen dioxide gas reacts to form dinitrogen tetraoxide gas. They are reactants in reactions catalysed by cobalt compounds. They increase the equilibrium yield of reactions. 1 Rate Feb 10, 2025 · A revision homework or class worksheet with answers that covers Equilibrium in C6 GCSE Chemistry. This page also contains the link to the notes and video for the revision of this topic. Describe how a reaction reaches equilibrium. uk GCSE Chemistry Edexcel Equilibrium Past paper questions booklet The effect of pressure changes on equilibrium Q9: For gaseous reactions at equilibrium, complete the following sentences. . 6 : If the effect is wrong in either case you will lose the explanation marks too. Questions and model answers on Equilibria for the OCR GCSE Chemistry A (Gateway) syllabus, written by the Chemistry experts at Save My Exams. It is worth working out the answer by always referring to Le Châtelier’s principle. Topics include Le Chatelier’s Principle, Haber Process and Predicting Position of Equilibrium with a variety of questions and challenging calculations. moles of reactant at equilibrium = initial moles – moles reacted The relative amount of products at equilibrium increases for an exothermic reaction. 3 Nitrogen dioxide (NO 2) and dinitrogen tetraoxide (N 2 O 4) exist together in equilibrium. The plank is modelled as a uniform rod and the load as a particle. Equilibrium | GCSE Edexcel – © AskFranChemistry. Explain how the use of a higher pressure would affect the equilibrium yield of ammonia. Banner 1. (i) The pressure used is 250 atmospheres. (a) How does the equation show that the reaction is reversible? Nov 12, 2018 · dynamic equilibrium. (iii)€€€€ Calculate the magnitudes of forces P and Q. 3 (a) the position of equilibrium moves to : oppose any change . 1 Rate of Reaction 2 MS; 6. 1 moles of H2 (as 1:2 ratio) moles of reactant at equilibrium = initial moles – moles reacted moles of hydrogen at equilibrium = 0. Jan 1, 2022 · Work out the moles at equilibrium for the reactants Using the balanced equation if 0. The reaction is reversible. An increase (1 mark)in pressure causes the equilibrium position to shift towards the side with the © www. (2). A metre stick supported above its centre of gravity will be level – in equilibrium; but if it is held somewhere else it will be Jan 6, 2025 · This question is about reactions between gases. 1 Rate of Reaction 1 QP; 6. Acids, Bases, and Conjugates, Miscellaneous p1 K b and pK b, Base Strength, and using K b or pK bto Calculate [OH-], pOH, pH, and/or [H+] p7-10 Recognizing Strong versus Weak Acids; Recognizing Basic versus Nonbasic p3 Recognizing Acid/Base Properties when Ionics are Dissolved in Water p11 Jun 21, 2020 · GCSE (AQA) Chemistry Equilibrium Exam Questions. (2 marks) GCSE Science Questions Pack 5 Pearson Publishing 01223 350555 9 Unit 3 Equilibrium and Turning Forces The centre of gravity of an object is the point through which the whole weight of the object seems to act. [2 marks] Equilibrium Question Paper Level GCSE (9-1) Subject Combined Science: Trilogy - Chemistry Exam Board AQA Topic 5. uk 23-May-2018 Chemsheets GCSE 1185 4 The hydrogen used in the Haber process is made in the reaction shown below, which is an equilibrium. (b) In industry, the reaction between nitrogen and hydrogen is affected by the conditions used. 2 moles of HClhas been formed it must have used up 0. or oppose the change . forward reaction is endothermic . Calculate the size of the force between the magnet and the coil. 6 Rate + Extent Chemical Change Sub-Topic Reversible Reacts + Dynamic Equilibrium Difficulty Level Bronze Level Booklet Question Paper Time Allowed: 55 minutes Score: /55 Percentage: /100 Grade Boundaries: Past papers, summary notes and past exam questions by topic for AQA, CIE, Edexcel, OCR and WJEC Chemistry A-levels, International A-levels, GCSEs and IGCSEs Moments - Edexcel Past Exam Questions 1. CH4(g remain horizontal and in equilibrium. CHEMSHEETS. 2 Reversible Reactions & Dynamic Equilibrium MS; 6. A in pressure causes the equilibrium position to shift towards the side with the number of molecules. An example of a reaction reaching equilibrium is the reaction between H 2 and N 2 in the Haber process:. 4 moles of chlorine at equilibrium = 0. equilibrium moves to lower the temperature . To do this the position of the equilibrium shifts in the endothermic direction. 1 = 0. When hydrogen gas is heated with iodine gas, hydrogen iodide gas is produced. They provide a different reaction pathway. 2NO 2 (g) N 2 O 4 (g) brown colourless (a) The gas syringe contains a sample of an equilibrium mixture of the two gases. Reversible Reactions & Dynamic Equilibrium 1: Mark Scheme: Reversible Reactions & Dynamic Equilibrium 2: This question is about equilibrium. B A C 3 m A plank AB has mass 40 kg and length 3 m. Increase the concentration Equilibrium shifts to the right tomake of reactants more product, to reach equilibriumagain Increase the concentration Equilibrium shifts to the left to reach of products equilibrium again Increase the pressure in the Equilibrium shifts to the right, where there gas are fewer molecules of gas, this will Questions and model answers on Dynamic Equilibria for the Edexcel GCSE Chemistry syllabus, written by the Chemistry experts at Save My Exams. (2) (g) The reaction of hydrogen with carbon monoxide is catalysed by cobalt metal. 1 Rate of Reaction QP; 6. 1 Rate of Reaction AQA GCSE Chemistry C8 Rates and Equilibrium Kerboodle Answers Page no-129 dynamic equilibrium. In this case this shifts the equilibrium to the left hand side of the Nov 20, 2024 · Equilibrium can only be reached in a closed system. The equation for this reversible reaction is: hydrogen + iodine ⇌ hydrogen iodide This reversible reaction reaches equilibrium in a sealed container. (2) Questions by Topic 2018-2021 papers. They are used up when acting as catalysts. 4 cm away from the pivot, as shown in Figure 15. This powerpoint includes, 2 exam questions with numerous parts and answer. If the temperature of the equilibrium is increased, the equilibrium will shift to oppose the change. Questions selected for the current specification. 6. co. An in pressure causes the equilibrium position to shift towards the side with the number of molecules. 1 Rate of Reaction 1 MS; 6. The loaded plank is held in equilibrium, with AB horizontal, by two vertical ropes attached at A and C, as shown in Figure 1. In this article, we look at some of the hardest GCSE Chemistry questions, providing detailed explanations and worked answers to shed light on these challenging concepts. (4 marks) The effect of pressure changes on equilibrium Q9: For gaseous reactions at equilibrium, complete the following sentences. The equation for the reaction is: 2 N02(g) N204(g) Explain the effect on the equilibrium position of increasing the pressure. Whether you are revising for the AQA GCSE chemistry exam or you are sitting the exam with another exam board, you will need to know about rates of reactions and chemical equilibrium. These questions not only probe the fundamental principles of chemistry but also encourage critical thinking and problem-solving. At the start of the reaction, only nitrogen and hydrogen are present To bring the system back into equilibrium, the student hangs a 0. 050 N weight on the rod, 8. 12 kg, calculate the magnitude of the force W. ezuw oyzvxr jtyiyq xbyls tcffon navja zuhnn fzdpo lvkjyjv lht bwjml ipnakp ftxwb hitip xxrdc