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Q. 46

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Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
Found in: Page 545

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Short Answer

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 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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