What is the specific heat of an unknown substance if a 2.31 g sample releases 12.5 cal as its temperature changes from 24.9°C to 20.7°C? Please explain ans show steps.
q = mass x specific heat x (Tfinal-Tinital)
Substitute and solve for the only unknown in the equation; i.e., specific heat.
It releases heat; therefore, q is -12.5 cal.