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Question 4 (no working required in parts (a) and (b)) Data: specific heat capacities of silver, gold, ice, water respectively: G 234;c,-126; c,-2100; cw-4190 (all in J kg-K-1) latent heat of fusion of water: lf density of silver: p1.05 x 104 kg m-3 assume specific heat capacities are constant (a) Which one of the following is true? (A) specific heat capacity of 2 kg of gold is greater than for 1 kg of silver (B) 2 kg of gold has heat capacity 252 J kgK (C) heat transfer Q 4.19 x 104 J will freeze 10 kg of water at 273 K (D) heat capacity of 200 g of water is 838 J K-1 (B) for the same Q, silver has greater ДТ1 than the same mass of gold (b) Gold and silver (subscripts g, s respectively) are heated, causing the same temperature change. Write down which one equation below is true in all cases (c) A cube of solid silver has sides 2 cm long and is initially at 200 K. Find the final temperature when it receives 2500 J of heat input (d) Find the equilibrium temperature when 3 kg of gold at 200 K comes into thermal contact with 1 kg of silver at 300 K (e) 2 kg of gold at 173 K comes into thermal contact with 0.25 kg of water at 283 K. The result at equilibrium is a water + ice mixture. Assuming pressure 1 atm, find the mass of ice formedPlease can I have a detailed explanation of ALL QUESTIONS IN THIS PAGE ( CLEAR HANDWRITING) + PLEASE ANSWER THEM ALL!!

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4 (a) (A stte gll on S.lver)n mum NOT TRUE = (2) (126)= 2.52 TRUE (c) Tofree ze lo K9 we nees m R NOT TRUE 200 TRUE2 0 02 00 kg(0.08 4) (0.34)(Tp-200) 2.500- T3 27. 2 K (Tf)((3) Ins )+0)(2%)): (23u) (300) + ( ,)(26)/100) 升ear gand hy geld (2)(126 ) (

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