A200-gram liquid sample of alcohol x is prepared at -10°c. the sample is then added to 300 g of water at 20°c in a sealed styrofoam container. when thermal equilibrium is reached, the temperature of the alcohol-water solution is 10°c. what is the specific heat capacity of the alcohol? assume the sealed container is an isolated system. the specific heat capacity of water is 4.19 kj/kg · °c.