Q2/ A thermometer initially at a temperature of 20°C is suddenly plunged into a liquid bath maintained at 150°C. After time interval of 3 seconds, the thermometer indicated a temperature of 95°C. Determine: a. The time constant of the thermometer. b. The indicated temperature after 5 time constants.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Kreith, Frank; Manglik, Raj M.
Chapter1: Basic Modes Of Heat Transfer
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Q2/ A thermometer initially at a temperature of 20°C is suddenly plunged into a liquid bath maintained at
150°C. After time interval of 3 seconds, the thermometer indicated a temperature of 95°C. Determine:
a. The time constant of the thermometer.
b. The indicated temperature after 5 time constants.
Transcribed Image Text:Q2/ A thermometer initially at a temperature of 20°C is suddenly plunged into a liquid bath maintained at 150°C. After time interval of 3 seconds, the thermometer indicated a temperature of 95°C. Determine: a. The time constant of the thermometer. b. The indicated temperature after 5 time constants.
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