Question $2$:

Consider a $25\mathrm{.}0g$ piece of plastic that has been cooled to $0\mathrm{.}0C.$ This piece of plastic is placed in a coffee cup calorimeter filled with $100\mathrm{.}0mL$ of water at $20\mathrm{.}0C.$ Once the water and plastic come to thermal equilibrium, the temperature of the water in the coffee cup is measured to be $18\mathrm{.}3C.$ What type of plastic is it$?$

INSTRUCTIONS: Choose $1$ letter from options A through F below on the MS Form.

Formatting may be lost in the question above $-$ see the slide shown in class for correct formatting

A$.$ Nylon, $cp=1\mathrm{.}31Jg-1K-1$

B$.$ Polyethylene, $cp=1\mathrm{.}55Jg-1K-1$

C$.$ Polystyrene, $cp=1\mathrm{.}10Jg-1K-1$

D$.$ Polyvinyl chloride $($PVC$),cp=0\mathrm{.}880Jg-1K-1$

E$.$ Vulcanized rubber, $cp=1\mathrm{.}80Jg-1K-1$

F$.$ None of these