Good luck for chemistry paper tomorrow

tysm

How’s 12 endothermic if the temperature (system) falls and not the surrounding?

Q 1 0:00 States of Matter Q 2 1:42 States of Matter Q 3 2:27 Atoms, Elements and Compounds Q 4 3:42 Atoms, Elements and Compounds Q 5 4:49 Atoms, Elements and Compounds Q 6 5:41 Atoms, Elements and Compounds Q 7 6:25 Atoms, Elements and Compounds Q 8 7:23 Stoichiometry Q 9 8:42 Stoichiometry Q 10 12:56 Electrochemistry Q 11 14:38 Electrochemistry Q 12 15:32 Chemical Energetics Q 13 16:10 Chemical Reactions Q 14 17:30 Chemical Reactions Q 15 18:42 Chemical Reactions Q 16 19:51 Chemical Reactions Q 17 20:49 Chemical Reactions Q 18 21:49 Chemical Reactions Q 19 23:26 Acids, Bases and Salts Q 20 25:30 Acids, Bases and Salts Q 21 27:02 Acids, Bases and Salts Q 22 27:33 Periodic Table Q 23 28:23 Periodic table Q 24 29:00 Periodic Table Q 25 31:24 Metals Q 26 31:50 Metals Q 27 32:05 Metals Q 28 33:02 Metals Q 29 34:10 Chemistry of Environment Q 30 35:22 Organic Chemistry Q 31 36:14 Organic Chemistry Q 32 36:56 Organic Chemistry Q 33 38:36 Organic Chemistry Q 34 39:57 Organic Chemistry Q 35 40:17 Organic Chemistry Q 36 41:43 Organic Chemistry Q 37 43:49 Experimental Techniques and Chemical Analysis Q 38 44:30 Experimental Techniques and Chemical Analysis Q 39 45:18 Experimental Techniques and Chemical Analysis Q 40 46:02 Experimental Techniques and Chemical Analysis