Answer:
Mass of lead, m = 687 g
Explanation:
The expression for the calculation of the enthalpy change of a process is shown below as:-
[tex]\Delta H=m\times C\times \Delta T[/tex]
Where,
[tex]\Delta H[/tex] is the enthalpy change
m is the mass
C is the specific heat capacity
[tex]\Delta T[/tex] is the temperature change
Thus, given that:-
Mass = ?
Specific heat = 0.0380 cal/g°C
[tex]\Delta T=30.1-28.3\ ^0C=1.8\ ^0C[/tex]
Heat added = 47.0 calories
So,
[tex]47.0=m\times 0.0380\times 1.8[/tex]
Mass of lead, m = 687 g
