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Ch. 17 - Temperature, Thermal Expansion, and the Ideal Gas Law
Giancoli Douglas - Physics for Scientists and Engineers 5th edition
Giancoli Douglas5th editionPhysics for Scientists and EngineersISBN: 9780137488179당신이 사용하는 게 아니라요?교과서 변경
17장, 문제 3a

(I) (a) “Room temperature” is often taken to be 68°F. What is this on the Celsius scale?

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1
Step 1: Understand the relationship between Fahrenheit and Celsius. The formula to convert Fahrenheit (F) to Celsius (C) is: C=59(F-32).
Step 2: Substitute the given Fahrenheit temperature (68°F) into the formula. This gives: C=59(68-32).
Step 3: Perform the subtraction inside the parentheses: 68-32. This simplifies the expression.
Step 4: Multiply the result of the subtraction by the fraction 59. This will give the temperature in Celsius.
Step 5: Interpret the result as the equivalent temperature in Celsius for 68°F, which represents room temperature.

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주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Temperature Scales

Temperature can be measured using different scales, the most common being Celsius (°C) and Fahrenheit (°F). The Celsius scale is based on the freezing point of water at 0°C and the boiling point at 100°C, while the Fahrenheit scale sets the freezing point at 32°F and the boiling point at 212°F. Understanding the relationship between these scales is essential for converting temperatures accurately.
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가이드 코스
04:54
Introduction To Temperature Scales

Conversion Formula

To convert a temperature from Fahrenheit to Celsius, the formula used is C = (F - 32) × 5/9. This formula accounts for the difference in the size of the degree units between the two scales. Mastery of this formula is crucial for solving problems that require temperature conversions.
추천 영상:
가이드 코스
07:46
Unit Conversions

Room Temperature

Room temperature is a commonly accepted range of ambient temperatures that is comfortable for human habitation, typically around 20°C to 22°C (68°F to 72°F). It serves as a standard reference point in various scientific and engineering contexts, making it important to understand its significance when discussing temperature-related questions.
추천 영상:
가이드 코스
04:54
Introduction To Temperature Scales