2.) A bar of 20.0 grams of aluminum of specific heat 0.215 cal/gramCo is heated from 15.0 Co to 20.0 Co. How much heat was put into the bar? a. 100 calories b. 21.5 calories c. 20.0 calories d. 5.00 calories e. 15.0 calories

2.) A bar of 20.0 grams of aluminum of specific heat 0.215 cal/gramCo is heated from 15.0 Co to 20.0 Co. How much heat was put into the bar? a. 100 calories b. 21.5 calories c. 20.0 calories d. 5.00 calories e. 15.0 calories

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter14: Heat And Heat Transfer Methods

Section: Chapter Questions

Problem 6CQ: Heat transfer can cause temperature and phase changes. What else can cause these changes?

See similar textbooks

Related questions

Q: 18) A bimetallic strip, consisting of metal G on top and metal H on the bottom, is rigidly attached…

A: The metal G has a higher coefficient of expansion compared to that for metal H so, on placing…

Q: 2. A 10 kW drilling machine is used to drill a bore in a small aluininium block of mass 8-0 kg. How…

Q: 1. A human hand is approximately 0.4 kg. Suppose an average rotisserie chicken has mass 1 kg and…

A: mass of hand = 0.4 kg mass of chicken = 1 kg specific heat of chicken = 2720 J/kg-K change in…

Q: A Cook leaves a plastic spoon and a wooden spoon in a pot of hot water for the same length of time ,…

A: Wooden spoon will have a larger change in temperature for same amount of heat.

Q: 8. Say you have 1 kg of iron and 1 kg of water. You allow each of them to experience a temperature…

A: Temperature change in water and iron.

Q: 5. Give examples of solids that expand or contract due to temperature changes?

A: Most substances expand on heating and contact on cooling as a change on the temperature of the body…

Q: 1) Define the following terms:a) Internal energyb) Specific heat

A: Internal energy of an object is the sum of the energies of the molecules that make the object. The…

Q: How are heat and temperature different?

A: 1. Heat represent the transfer of thermal energy between molecules within a system. It is measured…

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: A 3.00-g copper coin at 25.0°C drops 77.0 m to the ground. (a) Assuming 61.2% of the change in…

A: Given: The mass of the coin is 3.00 g. The initial temperature of the coin is 25 °C. The height of…

Q: Hydrothermal vents deep on the ocean floor spout water at temperatures as high as 570°C. This…

A: a. The energy released from the water is

Q: Question 1- Food stand You need to choose the correct oil for the donut fryer (power of the fryer is…

Q: 5. An Aluminum rod is 20 cm long at 20 °C and has a mass of 350 g. If 10,000 J of thermal energy is…

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

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…

Q: 5. Soon after the Earth formed, heat released by the decay of radioactive elements raised the…

A: Given: Temperature, T1 = 300 K T2 = 3000 KAverage coefficient of volume…

Q: 5. You run outside in the afternoon. Describe how heat is being transferred in the situation, using…

A: When heat energy is supplied to or absorbed from an object , the temperature of the object increases…

Q: 5. A Cycle consists of : heat transfer into the system of 20kJ, work transfer into the system of…

Q: *73. Occasionally, huge icebergs are found floating on the ocean's currents. Suppose one such…

A: The expression for the heat required to melt the iceberg is, Q=mLf=ρVLf Substitute, Q=917…

Q: A house walls that are 23 cm thick and have an average thermal conductivity two times that of cork.…

Q: 1. Calculate how much energy is required to change 2.8 kg of ice at -20 °C into liquid water at 37…

A: To convert ice from -20°C to ice at 0°C , heat required Q1=msice∆T =2.8×2100×20 =117600 J…

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…

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: A house walls that are 11 cm thick and have an average thermal conductivity two times that of cork.…

Q: (17%) Problem 5: You are on your way to a party when the host asks you to pick up a bag of ice. At…

A: Initial temperature=-4.5 Final temperature=19

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

A: We know that the heat transfer method Radiation. which define as the method of heat transfer from…

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

A: Solution of 1a

Q: 4. Why is the energy required to melt I kg of ice about six times lower than the energy required to…

A: SOlution; 4. to find the energy required for ice and boil water 5. heat can not transfer between two…

Q: 1. How much heat is required to raise the temperature of 4 gal of water from 60 degrees Fahrenheit…

Q: 1.The heat of evaporation of water at atmospheric pressure is Lv 2260 kJ/kg. a. How much of this…

A: a. The formula for the work done is:

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: A house walls that are 24 cm thick and have an average thermal conductivity two times that of cork.…

A: Given data: The thickness of wall is x=24 cm. The surface area is A=950000 cm2. The inside…

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: Given

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

Q: Conclusion: 1. The specific heat of a material depends on the type of + and is a constant. 2. If the…

A: Introduction :- Here we need to discuss about the specific heat of the material and its dependence…

Q: 5. An air conditioner removes heat steadily from a house at a rate of 750 k]/min while drawing…

Q: 4. It is a well-known fact that water has a higher specific heat capacity than iron. Now, consider…

A: The specific heat of water is more than iron

Q: In order to determine the heat capacity of their latest phone, CrabappleTM engineers cool the phone…

Q: How many gallons of gasoline must be burned in order to raise the temperature of 10 liters of water…

A: Calculate the amount of heat to be absorbed by water to raise its temperature from T1=25o C to…

Q: 2) By what primary heat transfer mechanism does the sun warm the earth? A) conduction B) convection…

A: Conduction is the transfer of heat energy by direct contact, convection is the movement of heat…

Question

2.)

A bar of 20.0 grams of aluminum of specific heat 0.215 cal/gramC^o is heated from 15.0 C^o to 20.0 C^o. How much heat was put into the bar?

	a.	100 calories
	b.	21.5 calories
	c.	20.0 calories
	d.	5.00 calories
	e.	15.0 calories

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

Identify the type of energy transferred to your body in each of the following as either internal energy, heat transfer, or doing work: (a) basking in sunlight (b) eating food; (c) riding an elevator to a higher floor.
How do heat transfer and internal energy differ? In particular, which can be stored as such in a system and which cannot?
Describe a situation in which heat transfer occurs. What are the resulting forms of energy?
Following Vigorous exercise, the body temperature of an 80.0kg person is 40.0C. At what rate in watts must the person transfer thermal energy to reduce the body temperature to 37.0C in 30.0 min, assuming the body continues to produce energy at the rate of 150 W? (1watt=1joule/second or 1W=1J/s ).
(a) The number of kilocalories in food is determined by calorimetry techniques in which the food is burned and the amount at heat transfer is measured. How many kilocalories per gram are there in a 5.00g peanut if the energy from burning it is transferred to 0.500 kg of water held in a 0.100kg aluminum cup, causing a 54.9C temperature increase? (b) Compare your answer to labeling information found on a package of peanuts and comment on whether the values are consistent.
When a driver brakes an automobile, the friction between the brake drams and the brake shoes converts the cars kinetic energy to thermal energy. If a 1 500-kg automobile traveling at 30 m/s comes to a halt, how much does the temperature rise in each of the four 8.0-kg iron brake drums? (The specific heat of iron is 448J/kg C.)
(a) Calculate the rate of heat conduction through house walls that are 13.0 cm thick and have an average thermal conductivity twice that of glass wool. Assume there are no windows or doors. The walls' surface area is 120 m2 and their inside surface is at 18.0 , while their outside surface is at 5.00 . (b) How many 1-kW room heaters would be needed to balance the heat transfer due to conduction?
The U.S. penny is now made of copper-coated zinc. Can a calorimetric experiment be devised to test for the metal content in a collection of pennies? If so, describe the procedure.
Heat transfer can cause temperature and phase changes. What else can cause these changes?
For the human body, what is the rate of heat transfer by conduction through the body’s tissue with the following conditions: the tissue thickness is 3.00 cm, the change in temperature is 2.00C, and the skin area is 1.50m2. How does this compare with the average heat transfer rate to the body resulting from an energy intake of about 2400 kcal per day? (No exercise is included.)
A person inhales and exhales 2.00 L of 37.0C air, evaporating 4.00102g of water from the lungs and breathing passages with each breath. (a) How much heat transfer occurs due to evaporation in each breath? (b) What is the rate of heat transfer in watts if the person is breathing at a moderate rate of 18.0 breaths per minute? (c) If the inhaled air had a temperature of 20.0C, what is the rate of heat transfer for warming the air? (d) Discuss the total rate of heat transfer as it relates to typical metabolic rates. Will this breathing be a major form of heat transfer for this person?
The latent heat of vaporization for water at room temperature is 2 430 J/g. Consider one particular molecule at the surface of a glass of liquid water, moving upward with sufficiently high speed that it will be the next molecule to join the vapor. (a) Find its translational kinetic energy. (b) Find its speed. Now consider a thin gas made only of molecules like that one. (c) What is its temperature? (d) Why are you not burned by water evaporating from a vessel at room temperature?