Why do you think blacksmisths must have such hot fires to forge steel? 1. Because metals absorb lots of heat, and so need a hot fire 2.Because metals are able to defelect heat and so need a hot fire. 3.Because metals are naturally cold, and so need a hot fire. 4.Because metals are brittle and so need a hot fire.

Q: How much heat must be added to 200 g of water at an ini­tial temperature of 60°F to a. heat it to…

A:

Q: - - 8478 Btu/ft² – hr °F/in to cal/cm² – sºC/cm 48.94 Btu/ft² – hr ºR to W/m²C -

A: Convert the provided unit.

Q: uy uie silver. 10. How much heat is needed to transform 100 grams of water at 20°C to steam at…

A: Simple problem from Thermodynamics. Please have a good look. We will need  Specific Heat of water…

Q: 14. The reason ocean temperatures do not vary drastically in a 24h period is that: a. Water has a…

A: The temperature of ocean water decides which transformation water takes. When the temperature of the…

Q: 1. Newton's Law of Cooling. A cup of hot coffee has a temperature of 200°F when freshly poured, and…

A:

Q: The faster the molecules move, the lower the temperature. TRUE / FALSE 5. Materials of low thermal…

A:

Q: Rating after verification . Tks

A: Given data:Length of pipe, L=1000mDiameter of pipe, D=0.2mKinematic viscosity, υ=10−6m2/sflow rate…

Q: How much heat is needed to melt 4 g of ice? Give your answer in joules.

A:

Q: 2) 1000 J electrical energy was used to give heat energy of 250 cal. to 25 gm of water. The ratio…

A:

Q: Question 2 of 4 Question 2 Note: Round off your answer up to 3 decimal places. Input only the…

A:

Q: Drinking Rooibos Tea in the morning enables most people to start their day 'refreshed'! Tea is…

A: Specific Heat Capacity: It is the amount of energy required per unit mass of a body to increase its…

Q: What flaws do you see in the assumption that the heat added to the water (or glycerin) is…

A:

Q: How much calories of heat are needed to convert 500 grams of water at 30°C to steam at 150°C?…

A:

Q: 5. Draw a particle diagram to the right of the heating curve demonstrating what is occurring on line…

A: This is a heating curve. The heating curve generally starts with a solid that follows liquid and gas…

Q: Suppose you have 2 g of the following substances. Which material would require the most heat to…

A:

Q: 1. Distinguish between heat capacity and specific heat. 2. Why is the specific heat of water equal…

A: 1. Heat capacity of a body is the amount of heat required to raise the temperature of that body by…

Q: 5. The tendency of matter to change in length, area and volume in response to a change in a…

A: Thermal expansion- It is a tendency of a matter where matter change its shape,volume and area with…

Q: The sun is shining (800 w/m2) on two cars, each with 4m2 surface area facing the sun. One is painted…

A:

Q: The typical person expends 525 calories an hour playing badminton with friends. How much energy is…

A: Energy requirement per hour,E=525 Calories/hr

Q: Modified true of false. Write True if the statement is true. If not, write False and change the…

A: Given:- Heat is a form of energy Evaporation is accompanied by a heating effect. The reverse…

Q: A piece of steel expands 10 cm when it is heated from 20 to 40 deg C.  How much would it expand if…

A: Given data:  Steel piece expands 10 cm when heated from 20°C to 40°C Required: The expression in…

Q: 5. Apple juice initially at 20 °C temperature will be concentrated in an evaporator at 25 kPa. What…

A:

Q: What is the change in temperature of 2.2 kg of the following substances if 8.5 x 10^3 J of thermal…

A: Hi, you have submitted multiple subpart questions and it is not specified which parts you need help…

Q: initially have a gas at s pressure of 12 atm, a volu rs & a temperature of K & then I raise the…

A: Given values:- Initial pressure of the gas,(P1)=12 atm -----(1) Initial volume of the gas,(V1)=23 L…

Q: The temperature of water in a swimming pool decreases by 5.0 K during the night. The mass of the…

A: Given, The temperature of water decreases by 5 k mass of water in the pool is 560,000 kg specific…

Q: A 300g piece of hot metal at 400*C is dropped into 1kg of water contained in a 500g aluminium can.…

A: Given, mass of metal, m= 300g = 0.3kg mass of metal, mw = 1kg mass of metal, mc = 0.5kg temperature…

Q: If the latent heat of fusion of water is 334,000 J/kg, how much heat energy must enter 10 kg ice to…

A: Latent heat of fusion L = 334000 J/kg Mass of ice m = 10 kg Consider heat required to melt it is Q…

Q: Heat changes ice to water. How do we know we can get the ice back again? The ice can melt slowly.…

A: For a process to be reversible, process has to be quasi-static (extremely slow).

Q: 7. Bob walked (10 ml/kg/min) for 45 minutes at a steady pace requiring 10 ml/kg/min of O2. He weighs…

A: Given Data: Time taken in walking t= 45 min Weight is W = 70 kg

Q: 50-g piece of copper at 100°C. The entire system stabilizes at a final temperature of 20°C.…

A: Given, Weight of ice = 40 g

Q: 1) The importance of surrounding pressure and temperature and its effect on specific heat…

A: 1) For liquids and solids, surrounding pressure and temperature do not affect their specific heat…

Q: If an object is moving at 5,783 m/s under a temperature of 26°C, what is the Mach number?

A: Mach number is the cofficient which we use in the motion in air  It is  the ratio of flow velocity…

Q: 1. A piece of ice is melting on a table. How does the temperature just before melting compare to the…

A: As we know, Temperature of ice, Tice=0°C Temperature of melting ice, Tmelting ice=0°C

Q: 200 g of Coke with temperature of 20 degree celcius was mixed with 20 g of ice at 0 degree celcius.…

A: Given , mass of coke  , mcoke =200g Temperature of coke = 20 degree celcius mass of ice ,mice = 20g…

Q: What is calorimetry and what is its fundamental principle. Explain into at least 10 sentences.

A: Calorimetry is a branch of science that deals with the measurement of heat transfer during physical…

Q: 1. Draw any one diagram for solar cooker (Flat plate type)-Name all parts.

A:

Q: 1. A book will heat up if placed in the sunlight. Why is this not an example of conduction? Explain…

A: A book will heat if it is placed in the sunlight. We have been asked that why this example is not…

Q: Why do you think blacksmiths must have such hot fires to forge steel? Because metals are brittle and…

A: Steel is mainly made up of Iron and Carbon, and little percentage of other elements to make…

Q: If the sun were to grow in overall size, but the Sun’s temperature remained constant, what would…

A: Given If the sun were to grow in overall size, but the Sun’s temperature remained constant, what…

Q: 8. Shaming of flying: is it fair? We are seeing in recent years the shaming of flying. The reasoning…

A: Now a days flight shaming is popular to curb the global climate change . this initiation is…

Q: orksheet 113 - Specific Heat - 3400646 - Saved 11 ont References Review x Aav v JS.) View AAAEEEEE A…

A: