Problem M. 319. (December 2011)
M. 319. Make sodium cloride solutions in water of different mass concentration as 5%, 10%, and 15%. Cool down the solutions (for example in the freezer) and investigate at what temperature will the solutions begin to freeze.
(6 pont)
Deadline expired on January 10, 2012.
Statistics:
23 students sent a solution. 6 points: Juhász Péter, Kollarics Sándor, Papp Roland, Szabó 928 Attila, Szigeti Bertalan György. 5 points: Ercsey Tamás, Kovács 444 Áron, Olexó Gergely, Pálfi Nikolett, Szép András Jenő. 4 points: 8 students. 3 points: 1 student. 1 point: 1 student. 0 point: 2 students. Unfair, not evaluated: 1 solutions.
Problems in Physics of KöMaL, December 2011