How does the specific heat of water compare with that of various metals? Why?

Q: When 100 g of 40°C iron nails is submerged in 100 g of 20°C water, show that the final temperature…

A: Mass of nails & water = 100 g Temperature of nails= 40°C Temperature of water= 20°C

Q: Does a substance absorb or liberate any heat energy during the change of phase?

A: Phase transition is when a material transitions to a different state from a solid, liquid, or gas…

Q: What are four common phases of matter?

A: A phase is a physically distinctive form of matter.

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: Two blocks P and Q of different metals having their mass in the ratio 2:1 are given same amount of…

A: Given:Ratio of masses of P and Q = 2:1

Q: How does specific heat of metal compare to that of water?

A: The expression to determine the specific heat will be,

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: What do you mean by change of phase of a substance? Is there any change in temperature during the…

A:

Q: Why does the temperature of boiling water remain the same as long as the heating and boiling…

A: The temperature of the boiling water will not exceed 100°C as long the heating and the boiling…

Q: What does the thermal resistance of a medium represent?

A: The property of the medium to resists the flow of heat transfer through it is known as the thermal…

Q: Bimetallic strip consists of two strips of different metals: copper(on top) and iron ( on the…

A: A bimetallic strip consists of two strips of different metals: copper on top) and iron (on the…

Q: Why does an iron ball seem to have a lower temperature than a wooden ball despite having the same…

A: iron ball seem to have a lower temperature than a wooden ball despite having the same temperature

Q: If a cool cup of water is floated inside of a pot of water that is already boiling, will the water…

A: If  cup is conductor of heat the water can boil when its temperature reaches to 100 degree celsius.…

Q: Since all the objects emit energy to the surroundings, why don't the temperature of all the objects…

A: An object which is a good energy emitter will be also very good absorber. Such bodies are said to be…

Q: Hot water is poured simultaneously in four metallic tumblers painted outside with different paints.…

A: A  perfect black body absorbs the entire wavelength falling on it. That is why they appear black.…

Q: What is the reason for ice being less dense than water?

A:

Q: Is metal a good heat shield?

A: heat shield means the protection form heat

Q: Latent heat of a substance depends on the .............. of the substance: O a. mass O b. material…

A: Latent heat is the quantity of heat released or absorbed by a unit mass of a substance resulting in…

Q: How much heat (in kJ) must be added to completely transform the ice (at the melting point) to liquid…

A: Given Mass of ice = 2.0 kg Initial temperature of ice = -8 °C Final temperature of water = 0 °C We…

Q: Some solar energy devices used in homes circulate air over a bed of rocks that absorb thermal energy…

A: Use principle of calorimetry and put the values to calculate energy stored.    Given:mass of…

Q: If a room-temperature spoon is placed into a hot cup of coffee, followed by a teaspoon of cream from…

A: Given that a room-temperature spoon is placed into a hot cup of coffee, followed by a teaspoon of…

Q: What do you mean by the thermal agitation of molecules?

A: Thermal agitation of molecules can be defined as the ceaseless random motion of molecules or…

Q: Why does increasing the temperature of a solid make it melt?

A: The process by which solid become liquid is known as melting. Phase changes occur when matter…

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: 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 do we say a substance in a liquid phase is more disordered than the same substance in the solid…

A:

Q: If a piece of lead is hammered, it is found to be warmer.Why?

A: Every time a piece of lead is hammered, the kinetic energy of the hammer gets transferred to the…

Q: The water equivalent of 5 kg of a substance is 1 kg. Find its specific heat

A:

Q: If water that boils due to reduced pressure is not hot, then is ice formed by the reduced pressure…

A: From the ideal gas equation:

Q: Heat energy is transferred by conduction whenever molecules: A) collide each other B) means of…

A: Heat energy is transferred by three major methods. They are  1. Conduction, 2. Convection and 3.…

Q: Why is being burned by steam more damaging than being burned by water at the same temperature (100…

A: when the state of any matter changes from one state to another state  its temperature when the state…

Q: What is the best material to use to insulate a home?

A: Bulk insulation includes materials such as glass wool, wool, cellulose fiber, polyester and…

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: Are metals good thermal conduction

A: Thermal conduction is the phenomena by which the internal energy is transferred within the particles…

Q: Why is the energy is required to melt a solid?

A: Particles in solid are connected to each other by strong bonds and cannot move freely as in liquid…

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

A:

Q: Do water and ice have same specific heats?

A: The specific heat capacity is the amount of heat energy desired to increase the temperature of a…