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Physics

A metal piece of mass 5 g has thermal capacity 2.5 J K⁻¹. If the mass of the metal is tripled, then its specific heat capacity will be :

  1. 7.5 J K⁻¹
  2. 2.5 J K⁻¹
  3. 1.5 J g⁻¹ K⁻¹
  4. 0.5 J g⁻¹ K⁻¹

Calorimetry

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Answer

0.5 J g⁻¹ K⁻¹

Reason — As,

Specific heat capacity=Thermal capacitymass=2.5 JK−15 g=0.5 J g−1 K−1\text {Specific heat capacity} = \dfrac {\text {Thermal capacity}}{\text {mass}} = \dfrac{2.5\ \text J \text K⁻¹}{5\ \text g} = 0.5\ \text J\ \text g⁻¹\ \text K⁻¹

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