Identify the substance that absorbs 189 J of energy when a mass of 15 grams undergoes a temperature increase of 6 degrees Celsius.?
What is the specific heat? Show your work in the space provided.
- lenpol7Lv 71 month ago
Q = mcDeltaT
Q = 189 J
m = 15 g
c to be found ( the specific heat of the substance)
DeltaT = 6K
c = Q/(mDeltaT)
c = 189 J / (15g x 6K)
c = 2.1 J/gK
Look up a table of specific heats ( in Wikipedia)
This could be liquid methanol (methyl alcohol) at 2.14 J/gK
- Roger the MoleLv 71 month ago
(189 J) / (15 g) / (6°C) = 2.10 J / g·°C
The substance with specific heat like that is ice.
- billrussell42Lv 71 month ago
you have asked about 4-5 identical questions with just the numbers changed. Don't you think you could work out one yourself?