You are given a piece of pie straight out of the oven, so the ...

[gbarreiro]

You are given a piece of pie straight out of the oven, so the crust and the filling are at the same temperature. You sample a piece of crust with no problem, but when you put a piece of filling in your mouth, you burn your tongue. Why?
 
  What will be an ideal response?

Question 2

An electric device delivers a current of 5.0 A for 10 seconds. How many electrons flow through this device?
 
  A) 0.20
  B) 20
  C) 2.0
  D) 3.1  1020
  E) 31  1020

[mathjasmine]

Answer to Question 1

Because the filling is moist while the crust is dry, so that the filling has a much greater heat capacity.

Answer to Question 2

D