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MARK SCHEME – A-LEVEL PHYSICS – 7408-2 – JUNE 2023.
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Question 	Answers 	Additional Comments/Guidance 	Mark 	ID details 
 
 
 
 
 
 
 
 
 
01.1 	Total energy supplied (= Pt) =12 890 = 10 680 (J) 1 
 
Heat energy evaporate nitrogen at its boiling point (= ml) = 
0.05 2.0 10 = 10 000 (J) 2 
(Use of
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