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{"ops":[{"insert":""},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"1 a State one difference and one similarity between boiling and evaporation of water. [2] "},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"b A glass of water is placed in direct sunlight during a hot summer\u2019s day.  "},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"The temperature of the water increases. "},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"i Describe the change in the motion of the molecules of water. [1] "},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"ii Explain whether or not there is a change in the internal energy of the water. [3] "},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"c Complete the table below for each of the processes shown. Use the symbol \u2018+\u2019 for  "},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"an increase, the symbol \u2018\u2013\u2019 for a decrease and \u20180\u2019 for no significant change, as appropriate. [3] "},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":" "},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":" Kinetic energy "},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"of the particles "},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"Potential energy "},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"of the particles "},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"Internal energy "},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"An aluminium block increasing "},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"its temperature from room "},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"temperature to 300 \u00b0C. "},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"   "},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"Water boiling at 100 \u00b0C and "},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"changing into steam at 100 \u00b0C. "},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":" "},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"   "},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"Water at 0 \u00b0C changing into ice "},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"at \u201315 \u00b0C."},{"insert":"\n"}]}

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