Sensible Heat Calculator

The function calculates the sensible heat lost/gained by a substance

The function [Q_sens]=sensible_heat(mass,sp_ht_cap,Tinit,Tfin)
This function returns the sensible heat released/consumed
for given object of mass "mass" having specific heat capacity
"sp_ht_cap" at initial temperature "Tinit" and final temperature"Tfin"
All the units are in SI (kilograms,joules,Kelvin/Celsius). Use same
units for Tinit & Tfin! Constant specific heat capacity & no phase change assumed.