BuyFindarrow_forward

College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300

Solutions

Chapter
Section
BuyFindarrow_forward

College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300
Textbook Problem

Hydrothermal vents deep on the ocean floor spout water at temperatures as high as 570°C. This temperature is below the boiling point of water because of the immense pressure at that depth. Because the surrounding ocean temperature is at 4.0°C, an organism could use the temperature gradient as a source of energy. (a) Assuming the specific heat of water under these conditions is 1.0 cal/g · °C, how much energy is released when 1.0 L of water is cooled from 570°C to 4.0°C? (b) What is the maximum usable energy an organism can extract from this energy source? (Assume the organism has some internal type of heat engine acting between the two temperature extremes.) (c) Water from these vents contains hydrogen sulfide (H2S) at a concentration of 0.90 mmole/L. Oxidation of 1.0 mole of H2S produces 310 kJ of energy. How much energy is available through H2S oxidation of 1.0 L of water?

(a)

To determine
The energy released from water when it cools.

Explanation

Given Info:

High temperature of the water is 570°C .

Low temperature of the water is 4.0°C .

Specific heat of the water is 1.0cal/g°C .

The amount of water cooled is 1.0L

Formula to calculate the energy released from water is,

Qh=mc(ΔT) (I)

  • ΔT is the change in temperature
  • m is the mass of the water
  • c is the specific heat

Since, m=ρV

Equation (I) gives,

Qh=(ρV)c(ΔT)

  • ρ is the density of water
  • V is the volume of water

Substitute 566°C for ΔT , 1.0cal/g°C for c, 1g/cm3 for ρ and 1

(b)

To determine
The maximum usable energy an organism can extract from this energy source.

(c)

To determine
The energy available through H2S oxidation of 1.0L of water.

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Additional Science Solutions

Find more solutions based on key concepts

Show solutions add

What are the moral implications of using ergogenic aids?

Understanding Nutrition (MindTap Course List)

Magnesium a. assists in the operation of enzymes. b. is needed for the release and use of energy. c. is critica...

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)

Velocity is a(n) ___ quantity. (2.2)

An Introduction to Physical Science

Which amino acid will be synthesized by the following process?

Introduction to General, Organic and Biochemistry

What is genomics?

Human Heredity: Principles and Issues (MindTap Course List)

List the functions of the cardiovascular system.

Human Biology (MindTap Course List)

Explain why Gf of O2 (g) is zero.

Chemistry for Engineering Students

A star has a spectral class M. What type of star could this be?

Foundations of Astronomy (MindTap Course List)

A 42.0-kg boy uses a solid block of Styrofoam as a raft while fishing on a pond. The Styrofoam has an area of 1...

Physics for Scientists and Engineers, Technology Update (No access codes included)