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Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

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BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

The specific heat capacity of copper metal is 0.385 J/g · K. How much energy is required to heat 168 g of copper from ―12.2 °C to +25.6 °C?

Interpretation Introduction

Interpretation:

Energy required to heat a definite mass of copper at different temperature has to be calculated.

Concept Introduction:

Heat energy required to raise the temperature of 1g of substance by 1k.Energy gained or lost can be calculated using the below equation.

  q=C×m×ΔT

Where,

  q= energy gained or lost for a given mass of substance (m),

  C =specific heat capacity

  ΔT= change in temperature

Explanation

Given

  C=0.385J/g.K

  Mass of copper =168g

  Tfinal=25.60C

  Tinitial=-12.20C

Calculate the ΔT using, ΔT =Tinitial-Tfinal

  ΔT =298

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