50 * (43 - 25) = 7.5 * (t - 43) ... solve for t
the specific heats are the same, so they cancel
Can you help me please..
S'mores are an American treat that consists of a roasted marshmallow and some chocolate sandwiched between two graham crackers. Ideally, the chocolate is not so solid that it is difficult to bite through but also solid enough that it doesn't melt all over your hand when you take a bite out of your s'more.
Chocolate begins to melt between 40°C and 45°C depending on the different components of chocolate (which we will study in a later week). Assume that the melting temperature for chocolate is 43°C, and that heat transfer between the marshmallow and chocolate is perfectly efficient. Given this, to what temperature should you cool the roasted marshmallow (7.5 g) before adding it to the s'more so that the chocolate (50 g) is warmed up to 43°C from 25°C? Use 2 J/g⋅°C as the specific heat for both the chocolate and the marshmallow.
Enter the ideal temperature of the marshmallow in degrees Celsius (but without including the units):
2 answers
solving the calometry