Cite an exception to claim that all substances expand when heated.

Q: Calculate the minimum amount of energy, in joules, required to completely melt 130 g of silver…

A:

Q: How an ice box or refrigerator keep things cold for a long time?

A: Refrigerator works based on the principle heat is taken from the source at a higher temperature and…

Q: If the volume of a gas is doubled at constant temperature, what will happen to its temperature?

A: According to the ideal gas equation

Q: What happens to the gas pressure within a sealed gallon can when it is heated? When it is cooled?…

A: Explanation:

Q: Will dumping heat into a system necessarily raise the temperature of the system? Explain.

A: Heat:- Heat is thermal energy transferred from a hotter system to a cooler system that are in…

Q: In cooling a drink, does it make any difference whether 10 g of water at 0oC is added or 10 g of…

A: There are three different states of matter : solid(ice) , liquid(water), gas(steam) The energy…

Q: How does running hot water on a jar lid loosen it?

A: The running hot water on a jar lid loosen it because metals conduct more heat than glass.

Q: Is it possible to increase the temperature of a gas without adding heat to it ? Explain.

A:

Q: A bag of wheat weight 250 7o what heigt 'should it te /aiged so that Poterdial energi SO 96 00 J…

A: mass of bag of wheat (m) = 250 kg potential energy (U) = 9600 J g = 9.8 ms2

Q: What effect does an increase in temperature have on the volume of a gas that is not in a closed…

A: Volume of the gas increases as the temperature increases. According to the kinetic theory of gases,…

Q: Will pasta cook faster if the water boils more vigorously?Explain

A: No, the pasta will not cook faster if the water boils vigorously

Q: If a temperature of the gas molecules is increased then

A: SOlution: Kinetic theory of gases

Q: Why do farmers fill their fields with water on a cold winter night?

A: Water flows through the fine capillary veins of the plants. If the temperature on a cold winter…

Q: Suppose a gas is in an insulated container, so that no heat energy can escape. If a piston is used…

A: Lets says there is a cylindrical container whose wall as well as roof and bases are insulated that…

Q: how the pressure, temperature, and volume of a gas relate to one another, consider what happens when…

A:

Q: The temperature of a gas sample is increased. Why does its pressure increase?

A: The ldeal gas law is given by

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: 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: Calculate the specific heat capacity at constant volume for a gas. Given specific heat capacity at…

A: Given : Heat capacity at constant pressure (Cp)= 6.85 cal/mol.K R = 8.31 J /mol.K 1 cal= 4.18 J…

Q: If the refrigerator door is left open, what happens to the temperature of the kitchen?

A: Entropy in thermodynamics is defined as the degree of randomness or disorder in a system. The…

Q: Do you defog your windows with cold or hot air?

A: Yes, with the hot air preferably dry and hot air.

Q: Old-time kitchen lore suggests that things cook better (evenly and without burning) in heavy…

A: heavy cast-iron pots

Q: The primary method of heat transfer for liquid/gas (and plasma) is

A: the primary method of heat transfer for liquid/gas is convection.

Q: When using a linear expansion apparatus (micrometer form), why must you turn the micrometer screw…

A: When using a linear expansion apparatus (micrometer form), why must you turn the micrometer screw…

Q: Assume the total heat of vaporization (per gram) of water can be used to supply the energy needed to…

A: The latent heat of vaporization of water is 540 cal / gm

Q: Calculate the internal energy and the enthalpy of 1 kg of air occupying 0.05 m3 at 20 oC at 20 bar.…

A: Given data: Mass of air, m=1 kg Volume of air at T1=200C=20+273 K=293 K is V1=0.05 m3 at pressure…

Q: Do adiabatic processes apply only to gases? Defend your answer.

A: Adiabatic processes do not apply only to gases.

Q: Consider two equal-size rooms connected by an open door. One room is maintained at a higher…

A: Since rooms are identical they have same volume and since the doors are open they have same…

Q: what is relationpship between heat added to a system, change in its internal energy and external…

A: Step 1If heat is added to the system, Q is positive. Internal energy is the energy possesed by the…

Q: Would a bimetallic strip function if the two different metals have the same rates of expansion? Is…

A:

Q: The heat supplied to a substance during its change of state, does not cause any rise in temperature?…

A: The heat energy supplied to the substance during its change of state does not occur any rise in…

Q: What happens to the density of quantity of gas when its temperature is decreased and its pressure is…

A: From Charles law, it is know that when the pressure of the gas is kept constant, volume and…

Q: The door of a refrigerator is left open. Assuming the refrigerator is in a closed room, will the air…

A:

Q: Adiabatic expansion produces a cooling , why?

A: An adiabetic process is carried out in such a way that the total heat of the system always remains…

Q: Solid uranium can be converted chemically to uranium fluoride, UF6, which can be cooked up into a…

A:

Q: A car tire is adjusted to contain nitrogen at 220 kPa at 10 °C. Temperature to -10 °C What happens…

A:

Q: pes a refrigerator cool down inside? *

A: The answer is: Heat is removed from the cool area inside and  discarded into the warm area outside…

Q: When you boil water in a pot on the stove, which heats faster, the metal or the water? Explain.

A:

Q: Would you expect the temperature of a liquid to change as it is throttled? Explain.

A: The temperature of the liquid changes as it is throttled in the foolowing way:

Q: what is the function of water bath in boomb calorimeter

A:

Q: Write the term which matches the following defintion. Heating via direct contact

A:

Q: How will you find the change in internal of a system when it melts?

A: When the ice melts the change in internal energy of the system is calculated using first law of…