They say their research shows, for the first time, that caffeine, catechols, and chemical-substances called N-alkanoly-5-hydroxtryptamides stimulate molecular mechanisms of stomach acid secretion in human stomach cells.
Page 1 of 7. Specific Heat. Objectives. In this lab you will. â¢ measure the specific heats of aluminum and lead using a calorimeter and the. Vernier Temperature Sensor. â¢ observe how the temperature of your system reaches equilibrium in real time. â¢ plot your data and analyze it using the Vernier Logger Proâ¢ software.
Electrical energy = Volts x Amps x time = Electrical Power x time. Therefore: Heat energy = mass x specific heat capacity x temperature rise = VIt = Power x time. Example problem A 50 W heater is used to heat a 2 kg block of aluminium.eat energy input = 50x10x60 = 30 000J Heat energy gained by aluminium = 2 x specific heat capacity x 15 = 30 000J Specific heat capacity of aluminium = 30 000/30 =1000J/(kgoC) Notice that the time (10 minutes) has been converted into seconds.