Mathematical and Physical Journal
for High Schools
Issued by the MATFUND Foundation
Already signed up?
New to KöMaL?
I want the old design back!!! :-)

Problem P. 4781. (December 2015)

P. 4781. 200 g water is heated on a camping stove from a temperature of \(\displaystyle 15~{}^\circ\)C to a temperature of \(\displaystyle 75~{}^\circ\)C. (The cartridge of the stove contains 80% butene and 20% propane.)

By what amount does the total mass of the stove change during the heating process, if the efficiency of heating is 60%?

(3 pont)

Deadline expired on January 11, 2016.


Statistics:

98 students sent a solution.
3 points:79 students.
2 points:14 students.
1 point:5 students.

Problems in Physics of KöMaL, December 2015