According to le Chatelier’s principle, when a change is introduced into a system in chemical equilibrium, the equilibrium shifts
2 answers:
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Answer:
t=7.14s
v=-69.972 m/s
Explanation:
Position function
Velocity is the derivative of position function
The time the object hit the ground can be find by the given function know that the position is going to be 0m
Check:
So the velocity can be find using the time discovery before and using the same function but with the derivate
The velocity is negative because the object is moving downward
Answer:
a) The specific heat capacity means the amount of heat needed by a unit mass of a material to increase its temperature in one unit.
b) Liquid P - , Liquid Q -
, Liquid R -
, Liquid S -
Explanation:
a) The specific heat capacity means the amount of heat needed by a unit mass of a material to increase its temperature in one unit.
b) Let suppose that heat transfer rates between liquids and surroundings are stable. The quantity of the heat released is determined by the following expression:
(1)
Where:
- Mass of the liquid, in kilograms.
- Specific heat capacity, in joules per kilogram-degree Celsius.
- Initial temperature of the sample, in degrees Celsius.
- Freezing point, in degrees Celsius.
Liquid P (,
,
,
)
Liquid Q (,
,
,
)
Liquid R (,
,
,
)
Liquid S (,
,
,
)