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Explanation:
q = mc∆T
∆T = 325 - 125 (Since change in both Kelvin and Celsius are same)
∆T = 200 K
m = 2 kg
c = 200 J kg-¹ K-¹
q = mc∆T
q = 2 × 200 × 200
q = 80000 J
q = 80 kJ
Answer option (2)
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