Subject : Thermofluid On a hot summer day, a student stored a 90 °C of coffee in a themal-insulated bottle.The lid of the bottle is kept closed all the time.(a)Detemine whether the coffee will be wamer, cooler or no change when he leftthe bottle in the hostel from the 8.00 morning until 12 noon.(b)Explain your answer in (a) by using the first law of thermodynamics withderivation of appropriate equations.

In ideal case, no change will take place In practical case, it will be relatively cooler. 1st law of…

On a hot summer day, a student stored a 90 °C of coffee in a themal-insulated bottle. The lid of the bottle is kept closed all the time. (a) Determine whether the coffee will be warmer, cooler or no change when he left the bottle in the hostel from the 8.00 morning until 12 noon. (b) Explain your answer in (a) by using the first law of thermodynamics with derivation of appropriate equations.

On a hot summer day, a student stored a 90 °C of coffee in a themal-insulated bottle. The lid of the bottle is kept closed all the time. (a) Determine whether the coffee will be warmer, cooler or no change when he left the bottle in the hostel from the 8.00 morning until 12 noon. (b) Explain your answer in (a) by using the first law of thermodynamics with derivation of appropriate equations.

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.

Chapter3: Transient Heat Conduction

Section: Chapter Questions

Problem 3.12P

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