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Will the temperature of a beaker of water increase or decrease when it is mixed with sodium chloride?
Wiki User
∙ 7y ago
Dissolving salt in water is mildly endothermic; therefore, the temperature of the sytem as a whole will decrease. Please see the link.
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An intriguing effect occurs if you pour salt into melting ice: the temperature drops considerably.
Wiki User
∙ 7y ago
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Will a temperature of a beaker of water increase or decrease when its mixed with salt?
This is the typr of experiment that is performed with a 'Slurry' of ice and water in the beaker, and not just room temperature water. Adding salt to a slurry will cause some of the ice to melt. When ice melts, the temperature of the solution will drop, and potentially below the freezing point of pure water.If the water and salt are at room temperature, the mixing will yield no significant changes in temperature.
If you pour germinating peas in a beaker and boiled peas in another in which beaker will the temperature rise?
beaker x
Where should a thermometer be placed in a beaker?
Hold it by the top or use a clamp. But make sure before you take the temperature you stir the liquid around in the beaker first and that you do not let it touch the bottom of the beaker as the glass will be hotter than your liquid.
Beaker A contains water at a temperature of 15 degrees C beaker B contains water at a temperature of 37 degrees C Which beaker contains water molecules that have greater kinetic energy and why?
Beaker A: 15 C Beaker B: 37 C Beaker B contains water molecules that have the greater kinetic energy (on average). Since beaker B is at a higher temperature than beaker A, the water molecules must be moving faster in beaker B than in beaker A (on average). If heat is being applied to the beakers, then the increased amount of heat applied to beaker B is greater, and the heat will cause the water molecules in beaker B to move faster than the water molecules in beaker A (on average). Kinetic energy = (1/2) (mass) (velocity)^2 Since the velocity of the a water molecule in beaker B is on average greater than the velocity of an average water molecule in beaker A, the water in beaker B has a higher kinetic energy.
How could you increase the concentration of a solution after the saturation point is reached?
With few exceptions, if you increase the temperature of the solvent, you will increase the amount of solute that a solution will hold. So, let's say you have a saturated NaCl solution in water at room temperature. Put the beaker on a hot plate and heat it up, and it will be able to dissolve more salt. Cool it back down and it will become supersaturated (and unstable.)
When ammonium chloride dissolves in a beaker of water the beaker becomes cold to the touch explain this phenomenon?
When the ammonium chloride dissolves in the water, it is an endothermic reaction. The energy for the reaction comes from the water. Since the water is losing energy, the temperature of the solution decreases, which in turn decreases the temperature of the beaker because of heat transfer.
What is the temperature of the beaker holding the reacting substance decrease is it endothermic or exothermic?
The way I remember it: endo (think in). Heat is flowing in to the reaction from the surroundings. Heat flows from hot to cold, so the measured temperature decreases. The actual beaker will decrease temperature as well, since it is next to something that has decreased in temperature.
Will a temperature of a beaker of water increase or decrease when its mixed with salt?
This is the typr of experiment that is performed with a 'Slurry' of ice and water in the beaker, and not just room temperature water. Adding salt to a slurry will cause some of the ice to melt. When ice melts, the temperature of the solution will drop, and potentially below the freezing point of pure water.If the water and salt are at room temperature, the mixing will yield no significant changes in temperature.
A sample of ammonium nitrate is placed in a beaker of water and immediately begins to dissolve What exactly occurs during this process?
The temperature will decrease
Is calcium chloride and potassium chloride crystals in a beaker a pure substance?
Calcium chloride and potassium chloride are pure substances.
The temperature of true water is in a beaker is 25 c after adding a piece of magnesium to the water the temperature increase is this an exothermic or an endo thermetic?
exothermic ? because energy released
Describe the effect of increasing the beaker pressure on glomerular pressure?
An increase in beaker pressure causes an increase in glomerular pressure.
If you pour germinating peas in a beaker and boiled peas in another in which beaker will the temperature rise?
beaker x
What type of matter is in a beaker that has chloride crystals and water?
A pure substance
How does chemical change occurred in sugar to change a beaker from white to black?
At high temperature sugar is thermally degraded to brown caramel; further increase of temperature lead to to a carbonic residue or ash.
At what temperature does saltwater boil?
This depends on the concentration of sodium chloride, volume of the solution, beaker, source of heat.
Why is it not allowed to let the bulb of the temperature touch the bottom nor sides of the beaker that contains your liquid measuring the temperature?
The bottom and sides of the beaker will be hotter than the liquid inside.
