1. if the thermometer of the body measured by the celius thermometer is 28 degre Celcius What will the temperature be on the termometer scale which measure boiling water and freezing water as 500 and250 respectively
Answers
Answer:
Learning Objective(s)
· State the freezing and boiling points of water on the Celsius and Fahrenheit temperature scales.
· Convert from one temperature scale to the other, using conversion formulas.
Introduction
Turn on the television any morning and you will see meteorologists talking about the day’s weather forecast. In addition to telling you what the weather conditions will be like (sunny, cloudy, rainy, muggy), they also tell you the day’s forecast for high and low temperatures. A hot summer day may reach 100° in Philadelphia, while a cool spring day may have a low of 40° in Seattle.
If you have been to other countries, though, you may notice that meteorologists measure heat and cold differently outside of the United States. For example, a TV weatherman in San Diego may forecast a high of 89°, but a similar forecaster in Tijuana, Mexico—which is only 20 miles south—may look at the same weather pattern and say that the day’s high temperature is going to be 32°. What’s going on here?
The difference is that the two countries use different temperature scales. In the United States, temperatures are usually measured using the Fahrenheit scale, while most countries that use the metric system use the Celsius scale to record temperatures. Learning about the different scales—including how to convert between them—will help you figure out what the weather is going to be like, no matter which country you find yourself in.
Measuring Temperature on Two Scales
Fahrenheit and Celsius are two different scales for measuring temperature.
A thermometer measuring a temperature of 22° Celsius is shown here.
On the Celsius scale, water freezes at 0° and boils at 100°.
If the United States were to adopt the Celsius scale, forecast temperatures would rarely go below -30° or above 45°. (A temperature of
-18° may be forecast for a cold winter day in Michigan, while a temperature of 43° may be predicted for a hot summer day in Arizona.)
Most office buildings maintain an indoor temperature between 18°C and 24°C to keep employees comfortable.
A thermometer measuring a temperature of 72° Fahrenheit is shown here.
On the Fahrenheit scale, water freezes at 32° and boils at 212°.
In the United States, forecast temperatures measured in Fahrenheit rarely go below -20° or above 120°. (A temperature of 0° may be forecast for a cold winter day in Michigan, while a temperature of 110° may be predicted for a hot summer day in Arizona.)
Most office buildings maintain an indoor temperature between 65°F and 75°F to keep employees comfortable to verify some temperature conversions that were discussed earlier—the boiling and freezing points of water. The next example shows how these formulas can be used to solve a real-world problem using different temperature scales.
Example
Problem
Two scientists are doing an experiment designed to identify the boiling point of an unknown liquid. One scientist gets a result of 120°C; the other gets a result of 250°F. Which temperature is higher and by how much?
What is the difference between 120°C and 250°F?
One temperature is given in °C, and the other is given in °F. To find the difference between them, we need to measure them on the same scale.
Use the conversion formula to convert 120°C to °F.
(You could convert 250°F to °C instead; this is explained in the text after this example.)
Substitute 120 for C.
Multiply.
Simplify by dividing numerator and denominator by 5.
Add 216 + 32.
You have found that 120°C = 248°F.
250°F – 248°F = 2°F
To find the difference between 248°F and 250°F, subtract.
Answer
250°F is the higher temperature by 2°F.
Answer
Answer250°F is the higher temperature by 2°F.
Answer250°F is the higher temperature by 2°F.
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