The amount of water required to cool water from 100°C to 40°C will depend on the initial temperature of the water, the specific heat capacity of water, and the mass of the water being cooled. The formula to calculate this is q = mc(Tf-Ti), where q is the heat absorbed or released, m is the mass of the substance, c is the specific heat capacity of the substance, Tf is the final temperature, and Ti is the initial temperature.
water keeps cool by putting icepacks beside it.
There is an effect if you're a living being and trying to cool down. Humidity does not change the temperature. It will make it difficult for your body to cool down, so it 'feels' hotter with humidity. Sweat has to evaporate for your body to cool down. It's harder to evaporate when the air is already saturated with water (ie high humidity).
To calculate the heat energy required to cool water from 200°F to 32°F (its freezing point) and then to further cool it to 30°F and freeze it, we need to consider the specific heat capacities and latent heat of fusion of water. The specific heat capacity of water is 1 BTU/lb°F, and the latent heat of fusion of water is 144 BTU/lb. To cool water from 200°F to 32°F, we need to remove: (200°F - 32°F) * 1 BTU/lb°F = 168 BTU. To freeze the water at 32°F, we need to remove the latent heat of fusion: 144 BTU. Therefore, the total heat energy required to cool one pound of water from 200°F to ice at 30°F is 168 BTU + 144 BTU = 312 BTU.
It takes less time to cool or heat a galls of water because there is less water. If it was a spoon of water it would take less time than a bucket. It is all about amount.
Humidity is the amount of water vapor present in the air. It can affect how hot or cold we feel because our bodies rely on sweating to cool down, and high humidity can impede this process. Humidity levels are measured using devices like hygrometers.
Large amount of heat is required by water to increase the temperature of water. In addition, the heat of vaporization is required to tern the water into the vapour. This property of water helps the animal to keep it cool by use of less amount of water.
Not much, but it varies from machine to machine - a watercooled gamer computer needs far more power to cool it than does a laptop.
The amount of time it takes water to cool off would depend on the starting temperature of the water and the temperature of the environment. If it's cold in the environment, more than likely the water would take a short time to cool off.
the amount of water needed to cool down a a nuclear power station
the humidity condences and you get pure water. the air can only hold a certain amount of water vapour, that amount rises with temp so when you cool the air you can have excess water vapour which will condence to liquid water.
Running cold water is the quickest way to cool something, especially Baby Formula. Agitating the bottle under a running cold tap, will cool it to the required temperature quicker than anything else, including putting it in the freezer.
Always water your battery after the cool down period. The best practice for conventional forklift batteries are - 8 WORKING HOURS, 8 HOURS OF CHARGE, & 8 HOURS COOL DOWN. Water the batter prior to use; if required.
Always water your battery after the cool down period. The best practice for conventional forklift batteries are - 8 WORKING HOURS, 8 HOURS OF CHARGE, & 8 HOURS COOL DOWN. Water the batter prior to use; if required.
This is related to the polar nature of the water molecules. That is, the water molecules have a positive and a negative end, which makes them attract one another - and additional energy is required to separate them.
The simple reason is that an equilibrium reaction is occurring. When the ice cube is immersed into water, there is a difference in temperature, and as a result of this an equilibrium naturally occurs, with the ice cube warming up and the surrounding water cooling down. The ice cube will melt faster in a large amount of water than in a lesser amount because there is more surrounding water, and there will be differences in temperature between the water immediately surrounding the ice cube and the water surrounding the water surrounding the ice cube, so the outer 'layer' of water is warmer than that of the 'inner layer' (surrounding the ice cube), and this in turn warms up the inner layer and the outer layer cools down, still trying to reach equilibrium. Due to this increase in temperature the 'inner layer' tries to reach equilibrium with the ice cube and 'outer layer' of water even quicker, to produce a consistent temperature throughout the water. In a lesser amount of water there is less water to cool down, so the ice cube won't melt as quick as less energy is required to cool the water, unlike in the larger volume of water
coolant is used to keep the reactor cool and prevent it from melting down. The amount of cooling that is required really depends on the the amount of heat being put into the coolant.
A high specific heat allows water to heat slowly and cool slowly. This is because water requires a large amount of energy to change its temperature compared to other substances, which results in a slow rate of temperature change.