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How much heat is necessary to change 30 grams of water at 40 degrees celsius into water at 60 degrees celsius?
The idea here is to: * Look up the specific heat of water. * Multiply the mass, times the temperature difference, times the specific heat of water. You may need to do some unit conversions first; specifically, if the specific heat is given per kilogram, you can convert the grams to kilograms.
How many minutes does it take for water to get 80 degrees F?
It depends entirely on what the initial temperature and volume of the water is and how much heat is applied.
How much time did it take for the water to reach 100 degrees celsius?
That depends on the amount of water, on how cold it was initially, and on how fast heat energy is supplied.
How much heat is required to change 0.2kg of ice at -5 degrees to water at 5 degrees?
Heat required for this transition is given as the the sum of three heatsheat required for heating the ice from -5 degree Celsius +latent heat(conversion of ice at zero degree to water at zero degrees)+heat required to heat the water from 0 to 5 degree CelsiusHeating of ice=m x s x delta T,where m is the mass ,s is the specific heat of ice=200x0.5x5=500calmelting of ice=mxlatent heat=200x80=16,000calHeating of water=m x s x delta T,where m is the mass ,s is the specific heat of water =200x1x5=1000calTotal heat required=500+16,000+1000=17,500 cal
How much water should a pool lose on an average summer day in the south?
The answer will depend on the South of what? Which country or continent?It will also depend of the exposed surface area of the water in pool.
What is the relationship between surface area and rate of evaporation?
Evaporation is a process that takes place at the surface of a liquid, therefore the rate of evaporation is directly related to the surface area. Twice as much surface area will give you twice as much evaporation.
Does higher boiling point evaporate faster?
Evaporation and boiling are the same process, liquid water is converted to water vapour. To convert from liquid to gas the water molecules have to absorb heat. The rapidly the heat is supplied, the faster the liquid water changes to a gas. In evaporation this heat comes from the air the water is exposed to, the surface the water sits on and the heat already in the water (hot water cools as it evaporates). This process is relatively slow compared to boiling water where a lot of heat is being put into the system by the stove or hot plate. It takes the same amount of heat to boil or evaporate the same amount of water. Boiling provides this heat much more quickly. Therefore boiling water evaporates much more quickly.
What plant has leaves with waxy surfaces to protect themselves from dehydration due to much sunlight?
Such plants tend to store water in swollen leaf cells, and are generally classed as succulents. The waxy leaf surface is to prevent too much evaporation of water due to the heat.
What is the difference between the process of boiling and evaporation of water?
Boiling is a greatly expedited form of evaporation. When you heat something to its boiling point, it has enough energy for its molecules to rapidly escape. Evaporation is a much slower action, generally. It is just molecules at the surface gaining enough energy to escape. Both evaporation and boiling are endothermic processes. They will cool what ever the molecules are escaping from.
What does evaporation rate mean?
Speed it up! The evaporation rate is the factor determining how fast or slow a liquid evaporates, this depends on the temperature the surface area of the liquid, the strength of air currents above the liquid, pressure above the surface of the liquid or the nature of the liquid. -Qwasas Evaporation Rate is how much of a factor(such as heat,humidity,or wind) affect the "rate" of evaporation.
What causes evaporation besides heat?
Wind or air movement also promotes evaporation. Evaporation is also much faster in a vacuum.
How does cooling affect the volume of the substance?
No. Actually evaporation is the vaporisation from the surface of liquid, so its not matters that how much volume is the water of, because the rate of evaporation is depends upon the area of surface.
Why does water spilled on a floor evaporate more rapidly than the same amount of water in glass?
Two things, depth and surface area. A puddle is generally shallow and large, meaning there is more area for the sun to heat, which more water can evaporate at a faster rate. A glass of water is small and deep, so the process is slower. Now if you took the same volume of water that was in the glass and poured it onto the floor, the water would evaporate faster.
If ambient room temperature is a constant 22 degrees celsius how much of a liter of water would evaporate in 12 hours and is the size of the exposed surface area of 1 liter relevant to evaporation?
-- the area of the exposed surface -- the airflow over the exposed surface -- the temperature of the liter of water -- the air pressure at the exposed surface -- the relative humidity of the air in the room -- the transparency of the liter container are all relevant to the rate of evaporation.
What is the main difference between boiling and evaporation?
The main difference between boiling and evaporation is that boiling is much faster. Boiling also often takes place at the bottom of the fluid (where the heat source usually is) whereas evaporation takes place only at the surface. So boiling can produce bubbles, while evaporation doesn't.Evaporation is the process by which molecules in a liquid state (e.g. water) spontaneously become gaseous (e.g. water vapor), without being heated to boiling point. It is the opposite of condensation. Generally, evaporation can be seen by the gradual disappearance of a liquid, when exposed to a significant volume of gas.Boiling is very rapid evaporation starting within a container of water.Normally evaporation occurs at a much slower rate than boiling because most evaporation occurs with room temperature water.Boiling occurs only when the liquid is heated to the boiling point, and vapor bubbles come from the bulk of the liquid. In evaporation, vaporization occurs only at the surface of the liquid, not throughout the liquid, and this occurs at lower temperatures.
How does water evaporation relate to our day to day lives?
Evaporation produces much of the weather we see.
What must occur before precipitation can fall to earth's surface?
When there's too much water in a cloud it will fall. Or when it is cool enough to condense.
