Skip to main content
Ch.1 - Introduction: Matter, Energy, and Measurement
Brown - Chemistry: The Central Science 15th Edition
Brown15th EditionChemistry: The Central ScienceISBN: 9780137542970당신이 사용하는 게 아니라요?교과서 변경
모든 교과서Brown 15th EditionCh.1 - Introduction: Matter, Energy, and Measurement문제 36b
1장, 문제 36b

Many scientific data are reported at 25 °C. What is this temperature in kelvins and in degrees Fahrenheit?

검증된 단계별 안내
1
Start by converting the temperature from Celsius to Kelvin using the formula: K = °C + 273.15.
Substitute 25 °C into the formula to find the temperature in Kelvin.
Next, convert the temperature from Celsius to Fahrenheit using the formula: °F = (°C × \(\frac{9}{5}\)) + 32.
Substitute 25 °C into the formula to find the temperature in Fahrenheit.
Review the calculations to ensure accuracy and understand the relationship between the temperature scales.

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.
영상 길이:
44s

주요 개념

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

Temperature Scales

Temperature can be measured in different scales, primarily Celsius (°C), Kelvin (K), and Fahrenheit (°F). Each scale has its own zero point and increment. Understanding how to convert between these scales is essential for interpreting scientific data, as many scientific contexts standardize temperature to Kelvin or Celsius.
추천 영상:
가이드 코스
02:33
The pH Scale

Kelvin Scale

The Kelvin scale is an absolute temperature scale used in scientific contexts, where 0 K (absolute zero) is the point at which molecular motion ceases. To convert Celsius to Kelvin, you add 273.15. Therefore, 25 °C is equivalent to 298.15 K, which is crucial for calculations in thermodynamics and other scientific fields.
추천 영상:
가이드 코스
02:33
The pH Scale

Fahrenheit Scale

The Fahrenheit scale is primarily used in the United States and is based on a different zero point and degree increment compared to Celsius. To convert Celsius to Fahrenheit, you can use the formula F = (C × 9/5) + 32. For 25 °C, this results in 77 °F, which is important for understanding temperature in everyday contexts.
추천 영상:
가이드 코스
02:33
The pH Scale
관련 실천
교과서 질문

(b) Carbon dioxide (CO2) is a gas at room temperature and pressure. However, carbon dioxide can be put under pressure to become a 'supercritical fluid' that is a much safer dry-cleaning agent than tetrachloroethylene. At a certain pressure, the density of supercritical CO2 is 0.469 g/cm3. What is the mass of a 25.0-mL sample of supercritical CO2 at this pressure?

1664
views
교과서 질문

Make the following conversions: f. 0 K to °F

2
views
교과서 질문

Make the following conversions: e. 2500 °F to K

2
views
교과서 질문

(a) A sample of tetrachloroethylene, a liquid used in dry cleaning that is being phased out because of its potential to cause cancer, has a mass of 40.55 g and a volume of 25.0 mL at 25 °C. What is its density at this temperature? Will tetrachloroethylene float on water? (Materials that are less dense than water will float.)

1302
views
교과서 질문

The temperature on a warm summer day is 87 °F. What is the temperature in °C?

2
views
교과서 질문

(a) To identify a liquid substance, a student determined its density. Using a graduated cylinder, she measured out a 45-mL sample of the substance. She then measured the mass of the sample, finding that it weighed 38.5 g. She knew that the substance had to be either isopropyl alcohol 1density 0.785 g/mL2 or toluene (density 0.866 g/mL). What are the calculated density and the probable identity of the substance?

1320
views