Jake puts 700 g of soup (soup = 5.2 J / (g ° C)) in a pan. The soup has a temperature of 14 ° C. He heats this with an ELECTRIC hotplate in 5.5 minutes to 93 ° C. 

A. Show with a calculation that +/- 288 000 J of heat has been released by the hob. 

The efficiency of this process is 100%. B. Calculate the power of the hob. 

 Saïd takes a larger pan with the same soup and he heats this to 93 ° C. The return (unfortunately) is now only 65%. 1MJ of energy has gone through the cord of the hob ........ 

C. Calculate how many grams of soup Said has heated this time ..... 

Answer rating: 100% (QA)

Given A Thus 287560 J 288 000 J o... View the full answer