76. Calculate the amount of heat required to raise the tem- perature of a 22-g sample of water from 7 °C to 18 °C. 78. Calculate the amount of heat required to heat a 3.5-kg gold bar from 21 °C to 67 °C. 80. If 57 J of heat are added to an aluminum can with a mass of 17.1 g, what is its temperature change? 82. A 45-kg sample of water absorbs 345 kJ of heat. If the water was initially at 22.1 °C, what is its final temperature?

76. Calculate the amount of heat required to raise the tem- perature of a 22-g sample of water from 7 °C to 18 °C. 78. Calculate the amount of heat required to heat a 3.5-kg gold bar from 21 °C to 67 °C. 80. If 57 J of heat are added to an aluminum can with a mass of 17.1 g, what is its temperature change? 82. A 45-kg sample of water absorbs 345 kJ of heat. If the water was initially at 22.1 °C, what is its final temperature?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Related questions

Q: What are the base Sl units of specific heat? Selęct one: Aa. ms1 K-1 O b. m? s-1 K c. m? s2 K-1 X d.…

Q: Which of the following sets has all extensive properties? Select one: O a. pressure, volume, energy…

A: EXTENSIVE PROPERTIES An extensive property is an entity that varies with changes in the volume of…

Q: Select the expression representing the flow work (flow energy), where P is pressure, Vol is volume,…

A: Given p is pressure, vol Is volume, and V is the velocity, Option A is the correct answer

Q: Construct a qualitative work-energy bar chart for a process that is consistent with the equation…

Q: Conduction is the process of transferring thermal energy through

A: In the given statement, it is asked about the conduction mechanism.

Q: For the physical situation described below, identify the letter of the appropriate work-energy bar…

A: Here, initially, the roller coaster is at the top of the first drop. Hence, due to height, all…

Q: Consider a black surface at 3000°F. Determine the radiation energy emitted by the black surface per…

A: T = 3000 F 1 W/m2 = 0.3169983306 Btu/hr-ft2 To be solved It is asked to find the radiation energy…

Q: 93 hi Vi Φο Wo ho Vo % kg/kg(d.a) kJ/kg m³/kg % kg/kg(d.a) kJ/kg m³/kg

A: To determine the relative humidity, humidity ratio, specific enthalpy, specific volume at no load,…

Q: The joule is a unit of work(or energy), defined by 1 joule = 1 newton meter. Convert 8 joule to…

A: The work is (W)=8 joule. To convert the unit of energy from joule to ft-lbf

Q: Which one of the following processes of heat transfer requires the presence of a fluid? a.…

A: (a) Conduction: Conduction is heat transfer through direct physical contact between materials. It…

Q: When heat energy transfers through a solid, what is it called?

A: Convection : This is a kind of heat transfer through fluid (liquids or gases) due to movement of…

Q: A gas is contained in a vertical piston-cylinder assembly by a piston with a face area of 60 in² and…

A: GivenA=60in2w=100lbfPatm=14.7 lbf/in2W=3Btuh=4ft

Q: Imagine that you have just walked outside on a cold day with a mug of hot chocolate. Do you think…

Q: A 35 lb object is subjected to an applied upward force of 20 lbf. The only other force acting on the…

A: Givenm=35lbF=20lbg=32.2 ft/s2

Q: 5.7. For the "standard atmosphere" shown in Fig. 5.5, perform the following calculations (a) Derive…

A: Consider P be the pressure at any instant. h be the change in height or denotes height at any…

Q: A 50 lb object is subjected to an applied upward force of 30 lbf. The only other force acting on the…

A: Here weight of object is 50 lb so it's mass will be, m=Wg=5032.2=1.553 lbs Here let's assume that…

Q: second law of thermodynamics

A: To find :- Second law of thermodynamics

Concept explainers

Mechanisms of heat transfer

Heat transfer is an essential discipline in thermal engineering that deals with the transfer, conversion, usability, and creation of heat or thermal energy. Transfer of heat occurs through various mechanisms like conduction, convection, radiation, and change of phases. All these mechanisms have distinct characteristics, but these mechanisms can simultaneously occur in an identical system.

Question

Energy, Heat Capacity, And Temperature Changes

76. Calculate the amount of heat required to raise the tem-
perature of a 22-g sample of water from 7 °C to 18 °C.
78. Calculate the amount of heat required to heat a 3.5-kg
gold bar from 21 °C to 67 °C.
80. If 57 J of heat are added to an aluminum can with a mass
of 17.1 g, what is its temperature change?
82. A 45-kg sample of water absorbs 345 kJ of heat. If the water
was initially at 22.1 °C, what is its final temperature?

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

Step 2

Step 3

Step 4

Trending now

This is a popular solution!

Step by step

Solved in 4 steps

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, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

4. Describe each of the three methods of heat transfer, in your own words. Make sure to explain how you can tell that that kind of heat transfer is happening.a. Conductionb. Convectionc. Radiation
1. thermodynamics
Give two reasons why it is important to pay attention thermal expansion and contraction in real life situations.
* Your answer is incorrect. A piston-cylinder assembly contains 0.7 lb of propane. The propane expands from an initial state where p₁ = 60 lbf/in.² and T₁ = 70°F to a final state where p₂ = 10 lbf/in.² During the process, the pressure and specific volume are related by pv² = constant. Determine the energy transfer by work, in Btu. W = i 3.123 Btu
Each of the following statements describes a way of coping with temperature variation. Which scenario most likely includes positive heat transfer through convection? That is, in which scenario does Hconvection most likely have a positive (+) sign? Hanimal = +SR + IRin – IRout +/- Hconvection +/- Hconduction - Hevaporation + Hmetabolic Select one: a. A rabbit basking in the sun early in the morning. b. A lizard resting in the shade in a hot desert in the middle of the day. c. A bumblebee vibrating its flight muscles before flight. d. A ground squirrel hibernating in the winter. e. A bird fluffing its feathers on a cold day.
VO2 (mL. kg. min ¹)-(0.1. S)+(1.8. S. G) 3.5 VO2 (mL. kg¹. min ¹1)-(0.2.5) + (0.9. S. G) 3.5 VO2 (ml. kg¹. min¹)-((10.8. watts)/BM)+7 Where S-velocity (m.min) G-gradient (expressed as a decimal, so 5% -0.05) During working maintain 4 d.p. Round answer to whole numbers. During working maintain 4 d.p. Round answer to whole numbers. What is the caloric expenditure for a 90kg client who cycles at 250W for 10 minutes? O a. 167 k.cal O b. 160 k.cal O c. 37 k.cal O d.67 k.cal O e. 173 k.cal Hand written plz