Answer:
The amount of the substance is 14.6 g.
Explanation:
Given that,
Energy = 350 J
Temperature [tex]T_{1}=10.0^{\circ}\ C[/tex]
Temperature [tex]T_{2}=30.0^{\circ}\ C[/tex]
Specific heat capacity = 1.2 J/g^{/circ}[/tex]
We know that,
The formula of specific heat is defined as
[tex]Q = mc\Delta T[/tex]
Where,
m = mass of the substance
c = specific heat capacity
[tex]\Delta T[/tex] = Temperature change
Put the value into the formula
[tex]350=m\times 1.2\times(30-10)[/tex]
The amount of substance is
[tex]m =\dfrac{350}{1.2\times(30-10)}[/tex]
[tex]m =14.6\ g[/tex]
Hence, The amount of the substance is 14.6 g.
