Question

how much heat is required to raise a 54g sample of water from -20 celsius to 90 celsius

explain

Answer 1

q1 = heat to raise T from -20 to zero.
q1 = mass ice x specific heat ice x (Tfinal-Tinitial) where Tf is 0 and Ti is -20.

q2 = heat to convert solid ice at zero to liquid water at zero C.
q2 = mass ice x heat fusion

q3 = heat to raise T of liquid water at zero C to 90 C.
q3 = mass water x specific heat liquid water x (Tfinal-Tinitial)

Total q is sum q1 + q2 + q3.

Answer 2

IS IT POSSIBLE IF YOU CAN DO THIS ONE FOR ME SO I CAN DO THE REST ON MY OWN SO I HAVE A IDEA OF WHAT TO DO AND WILL BE EASIER TO UNDERSTAND