Assignment Gradebook ORION Downloadable eTextboolk ce ent FULL SCREEN PRINTER VE

Question

Assignment Gradebook ORION Downloadable eTextboolk ce ent FULL SCREEN PRINTER VERSION BACK A NEXT Paired Exercise 4.17 How many joules of heat are required to heat 25.3 g of ethyl alcohol from the prevailing room temperature, 22.5 °C, to its boiling point, 78.5 °c? TABLE 4.3 Specific Heat of Selected Substances Specific heat (J/g C) Specific heat (cal/g'C) Substance Water Ethyl akcohol Aluminum Iron 1.000 0.511 0.492 0.215 0.113 0.0921 0.0312 0.0305 4.184 2.059 0.900 0.473 0.131 0.128 uestion Attempts: 0 of 2 used SAVE FOR LATER SUBMIT ANSWER

Explanation / Answer

Q = m*C*(Tf-Ti)

c = specific heat in J/gC, Q = total heat, J, M = mass in g, Tf-Ti = chang ein temperature in C

Q = 25.3* (2.138)(78.5-22.5)

Q = 3029.11 J

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