What is the energy change when the temperature of 12.9 grams of solid tungsten is decreased from 38.0 °C to 20.3 °C ? Answer: Joules.

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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What is the energy change when the temperature of 12.9 grams of solid tungsten is decreased from 38.0 °C to 20.3 °C ?
Answer:
Joules.
Transcribed Image Text:What is the energy change when the temperature of 12.9 grams of solid tungsten is decreased from 38.0 °C to 20.3 °C ? Answer: Joules.
Expert Solution
Step 1

Specific heat capacity:

Amount of heat or energy needs to be added to a material in per unit mass to increase the temperature 1⁰K is called specific heat capacity of that material.

The relationship is--

         Q = m×C×∆T

             = m×C×(Ti-Tf)

Where, Q = Heat /energy required (in joules).

C = specific heat capacity.

m = mass of the material.

∆T = Temperature difference.

 

 

 

 

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