Many tongues have been injured by licking a piece of metal on a very cold day. Why would no harm result if a clean piece of wood were licked on the same day?

Q: Many American homes have an outdoor pool for the children. On a hot summer day, why do the children…

A: American uses outdoor pool for children. Children find relief in the pool

Q: Is it a cause of worry when your body temperature is 310K?

A: The average body temperature of human being ranges from 36.5°C to 37.5°C. Any temperature below 35°C…

Q: Why does decreasing the temperature of a liquid make it freeze?

A: As the temperature of a liquid decreases, the randomness in the motion gets decreased. Freezing…

Q: The heating effect depends on which factors?

A: The heating effect of current depends on the following factors : The amount of time for which the…

Q: When putting ice in a glass of water, is it the ice that cools the water or the water that warms the…

A: Since heat transfer from higher temperature to lower temperature. Water has more temperature then…

Q: When a superheated liquid is agitated, which of the following may occur? *

A: When a superheated liquid is agitated then bubble formation occurs.

Q: Why does water vapor in the air condense when the air is chilled?

A: In the condensation process, a substance changes its phase from gas to liquid.   The kinetic energy…

Q: You're running a race in Paris on Bastille Day (July 24th), and "sweating like a hog" (although hogs…

A: Introduction The National Day of France (Bastille Day) is a national holiday in the country…

Q: When our bodies get too warm, they respond by sweating and increasing blood circulation to the…

A: Sweating  helps to maintain human body temperature. Evaporation will not takes place inside the…

Q: Why do Eskimos build double walled houses of blocks of ice?

A: The Eskimos build double walled houses in order to keep the interior of their houses warm.

Q: How does specific heat relate to how fast a substance changes temperature?

A: The heat loss, ∆H, from a substance of mass m and specific heat s, is related to the change in…

Q: Cite three examples in which Thermos bottle inhibits heat transfer?

A: The Thermos bottles use thermal isolation to prevent the transfer of the thermal energy or heat.

Q: Does a substance that cools off quickly have a high or low specific heat capacity?

A:

Q: Why is very cold ice 'sticky'?

A: An extremely thin layer of liquid water exists on the surface as the heat from the hand melts the…

Q: Is it the boiling of water or the higher temperature of water that cooks food faster in a pressure…

A: Food can be cooked more quickly in a pressure cooker.

Q: Does a substance that heats up quickly have a high or a low specific heat capacity?

A: The amount of heat required to raise the temperature of unit mass of substances through one degree…

Q: Why do we feel hot after a long period of running or doing exercise?

A: When we do running or any exercise, it will lead to increase in the muscular activity.

Q: When will water boil at a temperature of less than 100°C?

A: Yes, the water can boils at a temperature less than 100 degree Celsius.

Q: Why is it that a tub of water placed in a farmer's canning cellar helps prevent canned food from…

A: Canning cellar is a place build by the farmers to store the foods in cold winters.The water has…

Q: If you boil water in a whistling kettle, the kettle whistle when the water reached  its boiling…

A: In this problem it is asking about why does kettle whistle when the water reached its boiling point.

Q: Suppose the hot cocoa loses 100J of energy by heating. How much energy does the air gain?

A:

Q: Which is more painful, burn caused by condensing steam or burn caused by boiling water at the same…

A: Given:- Which is more painful, burn caused by condensing steam or burn caused by boiling water at…

Q: what happens as the temperature of an object increases?

A: It is very general scenario with various effects on the body and exhibited by the body. In layman…

Q: An old method for breaking boulders was to put them in a hot fire and then to douse them with cold…

A: This is because of sudden thermal expansion and contraction

Q: Why do frying pans have a thick base?

A: A thick base pan has higher mass hence higher heat capacity. A substance with large heat capacity…

Q: Why doesn't energy added to boiling water increase the temperature of the water?

A: When the water is boiling, it is on the course of undergoing a phase transition from its liquid…

Q: Ca;culate the engergy required to raise the temperature of 2.8 kg of water from 20 degrees C to 100…

A: 2.8 kg of water from 20 degrees C to 100 degrees

Q: What is the difference between the calorie used in physics and Calorie used in nutrition?

A:

Q: What happens to the temperature of water as it is boiling?

A: BOILING: Boiling is the process by which a liquid turns into a vapor when it is heated to its…

Q: Why does a piece of watermelon stay cool for a longer time than sandwiches do when both are removed…

A: Given:  watermelon and sandwiches

Q: Birds swell their feather in winter, Why?

A: Birds often swell their feathers in the winter in order to keep themselves warm.

Q: On cold, clear nights horses will sleep under the cover of large trees. How does this help them keep…

A:

Q: ich heat is required to bring 1 liter (1 kg) of water to a boil from 20 degrees Celsius? How ich…

A: Given  Volume = 1L =10-3 m3  density of water = 103 kg/m3  Mass m = volume × density = 10-3 ×103 =1…

Q: Why does the boiling temperature of water decrease when the water is reduced under pressure, such as…

A: A substance starts boiling when the vapor pressure of the substance overcomes the ambient pressure.

Q: When you exhale outdoors on a cold day, you can “see your breath.” Why?

A: When a person exhales, it containes water vapor. When it comes in contact with cold air, it forms…

Q: An iron nail becomes hot when it is hammered, Why?

A: Whenever there is an increase in temperature of an object, it is due to the increase in the object’s…

Q: Water in lakes and ponds do not freeze at once in cold countries. Give reason.

A: Latent heat of fusion of ice is 336J/g, which is sufficiently high.

Q: why doesn't the temperature of a beaker of water change during melting or boiling?

A:

Q: Why is it important to protect water pipes in the winter so that they don’t freeze?

A: Given:  water pipes