5. How much thermal energy is needed to change 100 g of ice at -20 °C into steam at 110 °C? a) Draw a heating diagram for this change. [6T] [4C]

Q: 9. Ten joules of heat energy are transfered to a sample of ideal gas at constant pressure. As a…

A: Given: The heat supplied is 10 J. The pressure is constant.

Q: 3. Air flows steadily at the rate of 0.5 kg/s through an air compressor, entering at 7m/s speed, 100…

A:

Q: 5 mole of methane gas inside balloon, gain heat by 1850 j , his temp increased 40 degrees in (…

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Q: 1a) A pound of body fat stores an amount of chemical energy equivalent to 3500 Cal. When sleeping,…

A: 1 pound of body weight burns 0.45 Cal/h. Therefore a person with body weight 151 lb(151 pound) burns…

Q: i. In the tropics, it is generally recommendable to paint houses especially the interior white.…

A: As per guide lines first question is solved, kindly post other question as a new question. 1 i)

Q: Question 5 wish to cool the coffee down to 80°C. How much ice, whose initial temperature is -5°C…

A: GivenMass of coffee (M) = 1 kgInitial temperature of coffee =950C =368 KFinal temperature of coffee…

Q: A 3.00-kg block of copper at 23.0°C is dropped into a large vessel of liquid nitrogen at 77.3 K. How…

A:

Q: Question 1 by A square copper bar has length, Lo, of 504 mm, and side length, ag, of 30 mm is…

A:

Q: 4- An ideal gas initially at 300 K undergoes an isobaric expansion at 2.50 kPa. If the volume…

A: The initial temperature T1=300 K The isobaric expansion P = 2.50 k Pa = 2.50×103 Pa Initial volume…

Q: 4. A 1.50-kg iron horseshoe initially at 600°C is dropped into a bucket containing 20.0 kg of water…

A: We assume that the water-horseshoe system is thermally isolated (insulated) from the environment for…

Q: 1. Why should the transferring of the hot metal from the beaker to the calorimeter be done quickly?

A: calorimeter :- it object that, used to measuring the heat of physical and chemical changes and heat…

Q: 2. How much energy is absorbed when 130 g of ice at -15°C is heated until it completely melts into…

A: Mass of ice is Initial temperature is Final temperature is The specific heat capacity for ice is The…

Q: 8) 100 grams of ethyl alcohol at −127 °∁ has enough heat added to it to turn the full mass into…

A:

Q: A 450-gram metal cube, which is originally at 110 degree(s) C, is dropped into a 0.003 m³ volume of…

A: Write the given values with the suitable variables. mc=450 g=0.450 kgT1=110 °CT2=70 °CTf=78…

Q: (20%) Problem 5: You have 45 kg of water in an insulated container. You add 0.35 kg of ice at -18 °C…

A:

Q: Prob.] A sheet of steel at 30 °C has size as shown below. If the coefficient of linear expansion of…

A: Given Initial temperature of sheet of steel Ti = 30°C Final temperature of sheet of steel Tf = 65°C…

Q: Question 7 An average stick of butter weighs 113g and has a specific heat of colid=4.05, when solid,…

A:

Q: 3. State which method of heat transfer: (a) does not require particles (b) works because particles…

A: Heat transfer It is method  in which heat energy can transfer from one to another point.

Q: sample. 'n Aluminium-monster word in 'n oond geplaas om te herkristalliseer by monster te…

A: GivenT=62°C=62+273=335 KQ=63 kJ=63×103 JC=3×10-6

Q: A steam engine intakes 100 g of steam at 100°C_per minute and cools it down to 20°C. Calculate the…

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Q: What is the minimum amount of energy required to completely melt a 6.72 kg lead brick which has a…

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Q: An ideal diatomic gas follows the thermodynamic cycle illustrated in the given PV-diagram. The…

A: the correct option is- 600K

Q: 200 g of ethyl alchohol is vapor at 108.5 degrees C. How much heat in units of kcal must we remove…

A: We are assuming that the specific heat of ethyl alcohol is the same in all phases.The amount of heat…

Q: 7. How much thermal energy is needed to change 100 g of ice at -20 °C into steam at 110 °C? ™

A: mass of ice = 100 g initial temperature of ice = -20oC final temperature = 110o C , steam

Q: (c) The temperature of 200 g of water decreases from 20 °C to 0 °C in 10 minutes. Calculate i. the…

A: In the given problem, 200 g of water decreases in temperature from 20 to 0o C in a time of 10…

Q: 15. Heat transfer in calorimetry is always: O From cold to hot In the direction of specific heat O…

A: The transfer of Heat always occur from Higher Temperature Body to Lower Temperature Body So Heat…

Q: A freezer is to convert 1.76 kg of water at 29.6°C to 1.76 kg of ice at -4.27°C. If the coefficient…

A: Given m=1.76 kg Cwater=4190 j/(kg. K) Cice=2100 j/(kg k) L=3.34 x 105j /kg

Q: 4) A 25g lead bullet is fired into a piece of wood. Assume that the initial speed of the bullet is…

A: Mass of bullet , m = 25 gm  Initial speed , u = 195 m/s  Kinetic energy of bullet , K.E. = (mu2)/2…

Q: On a cold day, a heat pump absorbs heat from the outside air at -10°C and transfers it into a home…

A: Given value--- cold temperatures = - 10 degree C. Hot temperatures = 30 degree C. We have to…

Q: How many Joules are required to melt 8 kg of aluminum if it starts at 20°C ? For aluminum the…

A: Given:-  The mass of the aluminum is m = 8 kg  The initial temperature of aluminum Ti=20°C The…

Q: Ina certain solar house, energy from the Sun is stored in barrels filled with water. In a particular…

A: Specific heat and heat capacities.