Practice question
Question
What is the Kelvin temperature equivalent to −23∘C?
Explanation
Relation: T = tC+273.15. T = −23+273.15 = 250.15K≈250K. As per NCERT, applying relevant law/formula with correct units and sign convention leads to 250 K. This satisfies dimensional consistency and physical conditions given, so option B is scientifically correct.
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