1)
Answer:
3912.48 J
Explanation:
The formula for calculating the quantity of heat is expressed as
H = mcθ
where
m is the mass of the substance
c is the specific heat capacity of the substance
θ is the change in temperature of the substance
From the information given,
m = 36
initial temperature = 8
final temperature = 34
θ = 34 - 8 = 26
c = 4.18J/g/C
By substituting these values into the formula,
H = 36 x 4.18 x 26
H = 3912.48 J
Quantity of heat energy needed = 3912.48 J
