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Question 1The specific heat of ethanol is 2.46 J/gºC. Find the heat required to raise the temperature of 403 gof ethanol from 29°C to 35°C.

User Ceyko
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1 Answer

4 votes

Step-by-step explanation:

We have to find the amount of heat necessary to heat 403 g of ethanol from 29 to 35°C. When we have to find the amount of heat that is necessary to change the tempearature of a sample we usually use this formula.

Q = m * C * ΔT

Where Q is the heat absorbed or released by the sample, m is the mass of the sample, C is the specific heat of the compound and ΔT is the temperature change.

m = 403 g

C = 2.46 J/(g°C)

ΔT = Tfinal - Tinitial = 35 °C - 29 °C

ΔT = 6.0 °C

We can replace these values in the formula and find the answer to our problem.

Q = m * C * ΔT

Q = 403 g * 2.46 J/(g°C) * 6 °C

Q = 5948 J

Answer: the heat required to raise the temperature of the sample is 5948 J.

User Stokes
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