Editing 2016-2017 Review HW For Math Of Dimensional Analysis And Heat Calculations
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Answer the following problems showing all work. (<b>There are no final or initial temperature calculations)</b><br> <br> 1. The Principal was driving the school golf cart 4.57km/hr. If the Principal rode 5.02E9 cm. how long did it take in days?<br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> 2. A 1.73 kg sample of a substance gains 26.3 kcals of energy. If specific heat capacity is 0.731 cal/(g °C), what is the change of temperature, (ΔT) . Please include the sign even if it is a positive number of degrees. <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> 3. A container of water was given 3.75KJ of energy and its temperature raise from 54.6°C to 101.4°C. How many grams of water are you heating?<br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> 4. How many kcals of energy was absorbed by 315g of a substance if the temperature raised from 37.1° C to 64.3°C. The specific heat capacity of the substance is 0.803 cal/(g°C)? <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> 5. What is the specific heat capacity of a substance if the 71.6g of substance absorbs 2.17 kJ of energy while the temperature went from 18.1°C to 47.2° C? <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> Answers: 1) 458days, 2) +20.8°C, 3) 19.2g , 4) 6.88kcal , 5) 1.04cal/(g°C)<br> <br>
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