The natural direction of heat flow between two reservoirs depends on

Q: A 12-kg iron ball is dropped onto a pavement from a height of 130 m . Suppose that half of the heat…

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Q: If a large pan of soup and a small bowl of soup have the same temperature, what do you know about…

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Q: Is it possible to heat a room by means of temperature?

A: if room is heated using any mechanical instrument (Blower for raising the temperature, AC for…

Q: In what direction does internal energy flow between hot and cold objects?

A: When two bodies, one hot and the other one cold comes in contact, the hotter body cools down and the…

Q: A = 2 sq meters L = 10 m Steel: k = 14 J/s-m-C 500 C Heat flow 25 C How much energy is conducted in…

A: The formula for the rate of heat flow by means of conduction is:

Q: heat is absorbed by the gas in;

A: Given; P-V diagram shows: Where,   An ideal gas undergoes a four step cycle. During this cycle, heat…

Q: What happens if the calorimeter is not covered properly?

A: Calorimeter or bomb calorimeter is defined as a apparatus used for measuring the amount of heat…

Q: Heat from an oven causes the whole kitchen to get warmer.

A: Radiant energy refers to energy that travels by electromagnetic radiation such as heat or x-rays.…

Q: The rate of heat flow by conduction through a slab does NOT depend upon the *

A: Heat flow is given by ∆Q∆t=-kA∆T∆x

Q: Heat transfer by radiation mainly depends upon:  A) Kind and extent of its surface B) Its…

A: Heat transfer is a phenomenon in which we send heat from a hot object to a object than is relatively…

Q: When heat energy is incident on a body, then (a) it is reflected (b) it is absorbed (c) it is…

A: When the heat is incident on the smooth and light color body, more heat is reflected from the…

Q: Since the fusion and melting does not result in a temperature change, where does the energy (heat)…

A: Dear student When some heat is given to any substance, its temperature increases. But during phase…

Q: The amount of energy transferred between two objects is considered. O a. Joules O b. Thermal waste O…

A: Lets define few the terms first: Joule: is the unit of heat . So it can't be answer.

Q: How does the frequency of radiant energy relate to the absolute temperature of the radiating source?

A: The frequency of the radiant energy is directly proportional to the absolute temperature of the…

Q: Consider two cylindrical rods that are identical in size and shape, but are made of different…

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Q: What is meant by dynamical theory of heat?

A: According to dynamic theory of heat everybody is made of small particles called molecules.This…

Q: The structure of a house is such that it loses heat at a rate of 3800 kJ/h per °C difference between…

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Q: Hot sand cools off faster at night than plants and vegetation. Then, the specific heat capacity of…

A: Given Hot sand cools off faster at night than plants and vegetation. We have choose the correct…

Q: is the type of thermal energy transfer that causes a camp fire to warm us. O a. convection O b.…

A: Emission of energy in waves or rays refers as radiation.

Q: If heat energy is given to a substance and its temperature remains constant then the substance…

A: At constant temperature, when heat is added or removed from a substance, then it undergoes a change…

Q: Name two factors on which the heat energy liberated by a body on cooling depends.

A: The heat energy liberated by the body depends on the specific heat capacity of the body, the mass of…

Q: The temperature of a swimming pool is maintained at 20-degree Celsius when the outside temperature…

A: The expression for the required comparison between the heat transfer energy is,

Q: Name three factors on which the heat energy absorbed by a body depends and state how does it depend…

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Q: The process of transfer of heat in liquid and gas is called as

A: RADIATION in radiation energy (heat) is transfer in from of electromagnetic wave.  and it does not…

Q: Show that heat always flows from high temperature to low temperature.

A: Heat always flows from high temperature to low temperature because of Second law of thermodynamics

Q: Mechanical energy is converted into heat energy when

A: mechanical energy can be converted entirely into heat Complete conversion of mechanical energy into…

Q: True or False  Radiative heat transfer requires a fluid to mediate the energy transfer. True or…

A:

Q: Compared to a giant iceberg, a hot cup of coffee has more what? (A) Thermal energy and higher…

A: Compared to a giant iceberg, a hot cup of coffee has more  a higher temperature, but less thermal…

Q: In terms of heat flow, explain why silverware feels cold to touch?

A: Answer:-  Metal(silverware) feels cold because it conducts heat extremely well.  Since room…

Q: Choose the BEST answer to the following: Heat is simply another word for (a) temperature. (b)…

A: Heat is the energy in transit that flows from a region of higher temperature to a region of lower…

Q: Microwaving your burrito is an example of what type of heat transfer?

A: Heat transfer by thermal radiation is due to electromagnetic waves

Q: Broiling is a method of cooking by radiation, which produces somewhat different results from cooking…

A: In the method of broiling, air is there above the stove which is a insulator. Hence, conduction of…

Q: The process of heat radiation is the ONLY method of heat transfer that can occur under water.…

A: The process of heat radiation is the ONLY method of heat transfer that can occur through space.

Q: Describe a situation in which heat transfer occurs?

A: Heat: It is the form of energy that takes from the hotter body to the cooler body. The flow of heat…

Q: Using the concepts of latent heat and internal energy, explain why it is difficult to build a fire…

A: Dump wood has moisture or water due to this it is difficult to build fire with damp wood. Water has…

Q: What determines whether an object is a net absorber or net emitter of radiant energy at given time?

A: All substance above absolute temperature emit radiant energy. Whether the object emits more than it…