Questions

Why does water take longer to heat up than other liquids?

Why does water take longer to heat up than other liquids?

Compared to air or land, water is a slow conductor of heat. That means it needs to gain more energy than a comparable amount of air or land to increase its temperature. Also, water’s fluid structure means its molecules are in a constant state of motion.

Why is it that heating water at the top of a container the water will never get hot?

Heating liquid in a closed constant volume container The pressure rises, and so the water in it will not boil at the normal boiling point. Instead, it will start boiling at a higher temperature.

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Why do some substances heat more quickly than others?

A material’s specific heat capacity has to do with many factors, but one of the most important is the mass of its individual atoms or molecules. It turns out that materials with lighter atoms tend to have higher specific heat capacities (take more energy to heat up) than materials with heavier atoms.

Which can give off more heat a glass full of hot water or a pitcher full of hot water that has the same temperature?

Sample Answer: The average speed of molecules in both containers is the same. There is greater internal energy in the full glass (twice the matter at the same temperature). More heat will be required to increase the temperature of the full glass by 1 Celcius degree, twice as much, in fact.

Why does water heat slower than land?

One reason water heats more slowly than land is that it is a mobile medium. Earth’s oceans are far more important than the land as a source of the heat energy which drives weather and climate. Not only do the oceans cover more than 2/3 of the Earth’s surface, they also absorb more sunlight and store more heat.

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Why does less water heat faster?

The thinner the water level, the faster it will boil. That’s because a greater amount of surface area exposes more water to the pan’s bottom, which is the hottest part of the pan.

Why does the temperature of boiling water remain the same as long as the heating and boiling continue?

When boiling occurs, the more energetic molecules change to a gas, spread out, and form bubbles. These rise to the surface and enter the atmosphere. In addition, gas molecules leaving the liquid remove thermal energy from the liquid. Therefore the temperature of the liquid remains constant during boiling.

Is water hotter than 212?

A: It is not true that water can only get up to 212 degrees and as cold as 32 degrees. After water changes from a liquid to a gas (at 212 degrees Fahrenheit) it can actually heat up much hotter than that.

Why does solid heat faster than liquid?

Conduction transfers heat energy in solids. The moving particles of a warm soild material can increase the heat energy of the particles in a cooler solid material by transferring it directly from one particle to the next. Since particles are closer together, solids conduct heat better than liquids or gases.

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Why is it easier to heat up a liquid than a solid?

Liquids expand for the same reason, but because the bonds between separate molecules are usually less tight they expand more than solids. Heat causes the molecules to move faster, (heat energy is converted to kinetic energy ) which means that the volume of a gas increases more than the volume of a solid or liquid.

Why large glass of water have more heat energy?

The heat capacity of an object depends both on its mass and its chemical composition. Because of its much larger mass, the swimming pool of water has a larger heat capacity than the bucket of water.

What makes a hot body hot?

When it’s hot and humid, your body moves blood to the skin’s surface and cools it with sweat. But not right away. It waits until your body hits a certain temperature. The exact number can vary depending on your age, health, and fitness level, but you’re likely to feel hot even as your body tries to cool you down.