Q. 46

Expert-verified
Found in: Page 545

### Physics for Scientists and Engineers: A Strategic Approach with Modern Physics

Book edition 4th
Author(s) Randall D. Knight
Pages 1240 pages
ISBN 9780133942651

# Suppose you take and hold a deep breath on a chilly day, inhaling 3.0 L of air at 0°C and 1 atm. a. How much heat must your body supply to warm the air to your internal body temperature of 37°C? b. By how much does the air’s volume increase as it warms?

a. The amount of heat is 0.103J

b. The volume is 0.408L

See the step by step solution

## Step  1: Definition of specific heat

The amount of heat that increase1 the degree temperature of 1-mole substance is called specific heat.

## Step 2: Finding the amount of heat and volume

A.

As per 3-litre air, mass is

The temperature difference is

Specific heat of air is

So

b. As this process is an isobaric process

Applying all values

It can be said that13.6% increase that means 0.408L is the volume

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