Book edition 1st Edition

Author(s) Paul Peter Urone

Pages 1272 pages

ISBN 9781938168000

Answers without the blur.

Just sign up for free and you're in.

Short Answer

How much heat transfer occurs from a system, if its internal energy decreased by \({\bf{150}}\;{\bf{J}}\)while it was doing 30.0 J of work?

The amount of heat transferred from the system is \(180\;{\rm{J}}\).

See the step by step solution

Step by Step Solution

TABLE OF CONTENTS :

TABLE OF CONTENTS

Step 1: Given data

Change in internal energy, \(\Delta U = - 150\;{\rm{J}}\)

Work done, \(W = - 30\;{\rm{J}}\)

Step 1: Find an expression to calculate the heat transfer from a system.

According to the first law of thermodynamics, the change in internal energy of a system is equal to the difference of heat transfer occurring in the system and the net work done. It is mathematically expressed as follows;

\(\begin{aligned}{}\Delta U = Q - W\\Q = \Delta U + W\end{aligned}\)

Here,\(\Delta U\)is the change in internal energy, \(Q\)is the net heat transfer and \(W\) is the net work done.

Step 2: Calculate the heat transfer using the given data.

System does the work, hence negetive. The value of the change in internal energy and the work done is given.

\(\begin{aligned}{}\Delta U &= - 150{\rm{ J}}\\W &= - 30{\rm{ J}}\end{aligned}\)

Substituting these values in the expression for heat transfer will give the amount of heat transferred from the system.

\(\begin{aligned}{}Q &= \Delta U + W\\ &= - 150{\rm{ J}} + ( - 30{\rm{ J }})\\ &= - 180{\rm{ J}}\end{aligned}\)

So, \(180\;{\rm{J}}\)of heat is transferred from the system.

Find Study Materials for

Create Study Materials

Select your language

College Physics (Urone)

Answers without the blur.

Short Answer

How much heat transfer occurs from a system, if its internal energy decreased by \({\bf{150}}\;{\bf{J}}\)while it was doing 30.0 J of work?

Step by Step Solution

Step 1: Given data

Step 1: Find an expression to calculate the heat transfer from a system.

Step 2: Calculate the heat transfer using the given data.

Most popular questions for Physics Textbooks

Want to see more solutions like these?

Recommended explanations on Physics Textbooks

Select your language

College Physics (Urone)

Answers without the blur.

Short Answer

How much heat transfer occurs from a system, if its internal energy decreased by \({\bf{150}}\;{\bf{J}}\)while it was doing 30.0 J of work?

Step by Step Solution

Step 1: Given data

Step 1: Find an expression to calculate the heat transfer from a system.

Step 2: Calculate the heat transfer using the given data.

Most popular questions for Physics Textbooks

Want to see more solutions like these?

Recommended explanations on Physics Textbooks

Work Energy and Power

Radiation

Astrophysics

Physics of Motion

Scientific Method Physics

Fluids

Torque and Rotational Motion

Nuclear Physics

Fields in Physics

Measurements

Space Physics

Electricity

Physical Quantities and Units

Medical Physics

Electrostatics

Further Mechanics and Thermal Physics

Mechanics and Materials

Engineering Physics

Energy Physics

Force

Particle Model of Matter

Waves Physics

Magnetism

Modern Physics

Atoms and Radioactivity

Dynamics

Electricity and Magnetism

Conservation of Energy and Momentum

Fundamentals of Physics

Kinematics Physics

Circular Motion and Gravitation

Linear Momentum

Rotational Dynamics

Oscillations

Translational Dynamics

Geometrical and Physical Optics

Thermodynamics

Magnetism and Electromagnetic Induction

Electromagnetism

Electric Charge Field and Potential

Turning Points in Physics