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Mechanical Engineering

How many ° C is the first value measured as 80 ° C?

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

Section: Chapter Questions

Problem 1.23P: Using the information in Problem 1.22, estimate the ambient air temperature that could cause...

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Concept explainers

Conduction and Convection

When energy travels from one object to another it is said to have undergone heat transfer. Heat transfer is nothing but the transfer of thermal energy or internal energy from one thing to another, like e.g., when a vessel with water, kept on top of a burner, heats up because of the flame underneath it.

Question

100%

In the measurement with the thermoeleman circuit, whose voltage-temperature relation is linear and the calibration coefficient is 0.05 mV/ºC, it was understood that the temperature of the reference end is higher than 0ºC after the measurement point temperature is calculated as 80ºC. To resolve this error, this time the measuring tip was immersed in the water-ice mixture and a deviation of 0.15 mV was observed at the millivolt meter. How many ° C is the first value measured as 80 ° C?

a. 76.25

b. 77.50

c. 78.00

d. 75.00

e. 77.00

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