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NTA Abhyas JEE Main2020PhysicsThermal Properties of MatterPractice

Find the change in the temperature on the Fahrenheit scale and on Kelvin scale, if an iron piece is heated from 30 ° C to 90 ° C.

Options

  1. A108 ° F, 60 K
  2. B100   ° F,   55   K
  3. C100 ° F, 65 K
  4. D60   ° F,   108   K

Correct answer

A. 108 ° F, 60 K

Step-by-step solution

Δ T C = 90   ° C − 30   ° C = 60   ° C Δ T F = 9 5 Δ T C = 9 5 ( 60 )   ° F = 108   ° F Δ T K = Δ T ⁡ C ⁡ = 6 0   K ⁡

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