Question

How much heat (in Joules) is needed to raise the temperature of 257g of ethanol (cethanol=2.4 J/g°C) by 49.1°C?

Answer 1

30284.88J

Step-by-step explanation:

Given parameters:

Mass of ethanol = 257g

Specific heat capacity of ethanol = 2.4J/g°C

Temperature change = 49.1°C

Unknown:

Amount of heat = ?

Solution:

The quantity of heat need to cause a temperature change on a body is given as;

H = m c Δt

where m is the mass

c is the specific heat capacity

Δt is the change in temperature

All units in proper dimensions. Input the parameters and solve for H;

H = 257 x 2.4 x 49.1

H = 30284.88J