]To calculate the amount of heat entering or leaving a system, the equation
Q
=
m
c
Δ
T
is used.
Explanation:
m = mass (in grams)
c = specific heat capacity (J/g°C)
ΔT = change in temperature (°C)
Here, we will use the specific heat capacity for liquid water which is 4.19 J/g°C.
The mass given is 25.0 grams.
As for the change in temperature, I will assume that it start off at room temperature, 25°C.
25
°
C
−
0
°
C
=
25
°
C
Q
=
m
c
Δ
T
Q
=
25
g
r
a
m
s
⋅
4.19
J
g
°
C
⋅
25
°
C
Q
=
2618.75
J
Take into account significant figures and the answer should be
2.6
⋅
10
3
J
Answer link
