An aluminum cup contains 225 g of water and a 40 g copper stirrer, all at 27°CA 450 g sample of silver at an initial temperature of 89°C is placed in the waterThe stirrer is used to stir the mixture gently until it reaches its final equilibrium temperature of 32°CCalculate the mass of the aluminum cup.
it is more better to use cling film and aluminium instead of using a tracing paper
Use the plastic wrap or the cling filmthe tracing paper is so thin that it may absorb moisture from the chocolate or oils from the chocolate and it may stick.
Assuming the entire system is insulated to prevent any heat energy from leaving the system the calculations proceed as follows Qmc?T Total Q is unchanged c(water)4.1813 m(water)0.225 kq c(copper)0.385 m(copper)0.040 kg c(alum.)0.897 m(alum.)x c(silver)0.0559 m(silver)0.450 kg (0.225)(4.1813)(5)+(0.385)(0.040)(5)+xcollecting and solving x1.04 kg
