42) Depression in freezing point
1.
The depression in freezing point caused by a 1M NaCl solution is 0.0123°C. What will be the depression in freezing point caused by 1M glucose solution?
2.
When HgI2 is mixed with aqueous solution of KI then freezing point ................. .(increases/decreases/remains same)
3. (True/False)
When a liquid and its vapours are at equilibrium and the pressure is suddenly decreased cooling occurs.
[ courtesy TAPAS posted in favor of avinav's request]
-
UP 0 DOWN 0 0 5
5 Answers
11I think last one is true.
Bcoz when u suddenly decrease the pressure, most of the liquid will evaporate - the internal energy of the remaining liquid supplies the enrgy reqd for the process - so cooling should occur. [12]
13.TRUE..........WEN PRESS. IS DECREASED ....TEMP DECREASES
AS P α T...IN EQIUM STATE
