Chemical Engineering > GATE 2026 > First Order Dynamic Systems
A thermometer initially at a steady temperature of 30 °C is inserted in a water bath maintained at 90 °C. The initial rate of temperature rise of the thermometer is 2 °C s−1. Assuming first order behavior, the thermometer reading (in °C) after one minute is ______ (rounded off to one decimal place).
Correct : 81.9
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