Two substances, A and B, initially at different

Chapter 6, Problem 69E

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QUESTION:

Two substances, A and B, initially at different temperatures, come into contact and reach thermal equilibrium. The mass of substance A is 6.15 g and its initial temperature is 20.5 °C. The mass of substance B is 25.2 g and its initial temperature is 52.7 °C. The final temperature of both substances at thermal equilibrium is 46.7 °C. If the specific heat capacity of substance B is 1.17 J/g °C , what is the specific heat capacity of substance A?

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QUESTION:

Two substances, A and B, initially at different temperatures, come into contact and reach thermal equilibrium. The mass of substance A is 6.15 g and its initial temperature is 20.5 °C. The mass of substance B is 25.2 g and its initial temperature is 52.7 °C. The final temperature of both substances at thermal equilibrium is 46.7 °C. If the specific heat capacity of substance B is 1.17 J/g °C , what is the specific heat capacity of substance A?

ANSWER:

Solution 69E: Step 1 of 4 In general, the heat (q) required to raise the temperature of a sample is obtained by multiplying the heat capacity of the substance (C ) with mass of the substance (m) and temperature change s (T) as given below: q = C ms .......... (1)

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