Steam at 100°C causes worse burns than liquid water at 100°C. This is becauseA. The steam is hotter than the water.B. Heat is transferred to the skin as steam condenses.C. Steam has a higher specific heat than water.D. Evaporation of liquid water on the skin causes cooling.

Q: 4. You place a 50 kg block of aluminum in a container with 100 kg of water at 35°C. If the block…

A:

Q: 4. A calorimeter contains 1.500kg of water at 80.0°C. Then 0.500kg of ice at -5.00 Cis added to the…

A: The heat capacity of water is C= 4.187 kJ/ kg K and for ice, it is c = 2.108 kJ/kg K.

Q: 5. Why does steam at 100°C cause more severe burns than does liquid water at 100°C? Interpreting…

A:

Q: 10. A 0.400-kg of ice is initially at temperature of –12.0 °C. How much heat is required to melt…

A: In the process of melting of ice, two steps occur-Firstly the ice is heated to temperature 00 C and…

Q: 6) A sample of gas is compressed to one-third of its initial volume at a constant pressure of 1.25 ×…

A: Write the given values with the suitable variables. Vf=13ViVi=3VfP=1.25×105 PaW=100 J Here, Vf, Vi,…

Q: 6. A solid sphere and a solid cube are made from the same material. The sphere would just fit within…

A: Given that A solid sphere and a solid cube are made of the same material. Both begin at the same…

Q: As the sun shines on a 1500kg concrete slab, the slab absorbs 3.4kj of energy. Concrete's specific…

A: Give, mass of concrete slab =1500 kg =1500×103 gramHeat absorbs =3.4 kJ =3.4×103 Jspecific heat of…

Q: 1. Two trials were performed in an experiment to determine the latent heat of vaporization of water…

A: To minimise the error during different trials ,final value is taken as average of the trial values .…

Q: (1a). Figure shows a copper rod AB being heated at one end. Explain how the heat transfers from A to…

A: 1a) Answer- In the above figure AB rod is heated at one end  This is a solid copper wire. So, in…

Q: 4. Heat is the quantity of kinetic energy absorbed or given off by a body.

A: Heat is the energy which flows due to temperature difference between two different objects. While…

Q: 3. A cast-iron pan of mass 2.72 kg is used to cook food, then it is set aside to cool off before…

A: Given:- mass of the cast iron m = 2.72 kg  The pen cools from 320°C  to 70°C after an unspecific…

Q: Q4: An electric power plant boils water to produce high-pressure steam at 650 °C. The high-pressure…

A:

Q: 7. A sample of gas is heated from 175 kelvin to 195 Kelvin. At 195 kelvin, the gas has a volume of…

A: Given Initial temperature= T1= 175[K] Final temperature= T2= 195[K] Final volume= V2= 0.888[L] When…

Q: 1.What is the state of a water vapor at 50°Fdew point temperature and  80 °F dry-bulb temperature?…

A: Given, the following data: Dew point temperature =50°F=10°C Dry bulb temperature =80°F=26.7°C

Q: A1,700.0 kg car with a speed of 72.5 km/h brakes to a stop. How many cal of heat are generated by…

A:

Q: (1a). Figure shows a person is warming his hands over the fire. Explain in detail how the heat…

A: The given figures show fire worming hand of a person this phenomena can easily understand by I hate…

Q: Q2) When a body is removed from an oven, its temperature is measured at 210°F. Four minutes later…

A:

Q: 6. A solid sphere and a solid cube are made from the same material. Thesphere would just fi t within…

A: The change in volume of an object due to its change in temperature can be obtained as ∆V=βV0∆T The…

Q: Water at the Antarctica usually exists as ice, making it very difficult to use the water or conduct…

A: Given: Mass of ice = 0.8 kg. = 800 g. Initial temperature of ice (Ti) = -35̊ C. = 238.15 K. Final…

Q: 1. (Young, et al., Sears and Zemansky's University Physics: with Modern Physics 13th Ed) You are…

A:

Q: An extraterrestrial scientist invents a temperature scale such that water freezes at -75°E and boils…

A: According to given new extraterrestrial temperature scale, The freezing point of water = -75°E…

Q: 65. A thermos contains 150 cm³ of coffee at 85 °C. To cool the coffee, you drop two 11-g ice cubes…

A: Heat lost by the coffee, Qcoffee=mcoffeeccoffee∆Tcoffee   Heat gained by ice and liquid water,…

Q: Q2) When a body is removed from an oven, its temperature is measured at 230°F. Four minutes later…

A: Given: At time = 0, ( T0) temperature = 230 F; At time = 4, (T(t)) temperature = 120 F; At time = x,…

Q: •6) • A body skin at 38°C has a mass of 60g. When it is immersed in a current of steam at 100°C,…

A: Given, Mass of body skin m =  360 g temprature of body skin is T 1= 38∘c After immersed temprature…

Q: 10. One of the most deadly features of an erupting volcano is an avalanche of hot ash and gas called…

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: When is heat energy largest? Why?

A: A vast amount of heat energy is produced during the process of nuclear fission and fusion. The…

Q: An electric kettle was used to heat a liter of water. Determine the heat needed (kJ) to bring the…

A:

Q: 5) How many kcal of heat must we remove from 5.00 kg of water at 80.00 degrees Celsius to turn all…

A:

Q: 10. How much thermal energy do you need to melt 1.0 gram of ice (an ice cube)? The latent heat of…

A:

Q: hat all matters increase temperature when heat is added? 2.use the concept of the Law of Conserv

A: (1)Anything that has mass and occupies space is called matter. A matter is made up of tiny…

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: Q2) When a body is removed from an oven, its temperature is measured at 220°F. Four minutes later…

A: Newtons law of cooling is used in convective heat transfer. It states that the rate of heat exchange…

Q: Given

A: In the given question they need a  reason why most of the heat is in the climate system is resides…

Q: 1) A glass contains 0.25 kg of Loca-Cola (mostly water) initially at 25° C. How much ice, initially…

A:

Q: Q4) A wood burning stove is in a room with a temperature of 18 °C. The surface of the stove has an…

A: A wood burning stove is in a room with a temperature of 18 °C. The surface of the stove has an…

Q: 5. A piece of ice (at 0°C) is dropped into a cup of water at 25°C. The cup is aluminum and has a…

A:

Q: A bullet made of silver (specific heat 234 J/kg deg C) traveling at 380 m/s hits a wooden post and…

A:

Q: 1. On a hypothetical temperature scale X, the ice point is assigned the reading 400 and the steam…

A: Given that For Temperature Scale  X Ice point ( Lowest Point ) XL = 400 Steam point ( Highest Point…

Q: 7. A website states that: "Steam is hotter than boiling water, so take the lids off cooking liquids…

A: Given statement :  "Steam is hotter than boiling water, so take the lids off cooking liquids…

Q: (1a). Figure shows a copper rod AB being heated at one end. Explain how the heat transfers from A to…

A: As per our guidelines, we are supposed to answer only first one question in case of multiple…

Q: 1) A beachcomber finds a corked bottle containing a message. The air in the bottle is at atmospheric…

A: P1 = 101325 Pascals T1 = 30.3 degree celsius  = 303.3 K P2 = ? T2 = 99 degree celsius  = 372 K Using…

Q: 1. A cup of coffee at boiling point temperature is brought to a room at 20°C. After five minutes,…

A:

Q: On the KuyaWill temperature scale, the freezing point of water is -26°KW and the boiling point in…

A: The relation between Celsius (C) and KuyaWill (KW) scales can be found using the following relation…

Q: 5. Which physicist first demonstrated that heat is a form of energy? a. Amedeo Avogadro b. Robert…

A: Option (d) is correct.

Q: A dog loses a lot of heat by panting. The air rushing over the upper respiratory tract causes…

A:

Q: A small brass ring has a mass of 0.02 kg. A scientist measures that 342 J of heat are required to…

A:

Q: Your house will be empty for a while in cold weather, and you want to save energy and money. Should…

A: Heat transfer takes place in three modes conduction, convection, and radiation. When we talk of…

Calorimetry

Measuring the heat transferred during chemical reactions or other physical processes is known as calorimetry. It comes under the branch of thermochemistry.