Share
Explore BrainMass

Scales

Scales of temperature are a way to measure temperature quantitatively. A temperature scale is based on a single physical property of a simple thermodynamic system, called a thermometer that defines a scaling function mapping the temperature to the measurable thermometric parameter. Temperature scales that are based on measurements are called empirical temperature scales.

Empirical scales are most commonly a linear, functional relationship. All temperature scales use the International System of Units (S.I.), calibrated according to thermal properties of a particular substance or device. This is established by fixing two defined temperature points and defining temperature increments via a linear function of a response to the thermometric device. For example, the Celsius scale and the Fahrenheit scale were originally based on the linear expansion of a narrow mercury column within a limited range of temperature. Each of the scales however used different reference points and scale increments.

The most common scales used in thermodynamic calculations are Celsius, Fahrenheit, Rankine, and Kelvin.  

Conversions

0oC = 273.15 K = 32o F = 491.67o R

Different Measurement Scales

For each of the following variable (1-20) listed below, Select the correct measurement scale (a-d) a) Nominal b) Ordinal c) Interval d) Ratio 1) Gender 2) Temperature in Celsius 3) Weight in pounds 4) Weight in Kilograms 5) Age in years 6) Age in categories(0-06 months, 7-12 months, 13+ months) 7) Blood type 8)

Pressures and Temperatures

When pressures and temperatures become unbalanced in the atmosphere of the Earth, it can produce some dramatic effects as the system tries to rebalance itself, or re-equilibrate (i.e. reach equilibrium). Many of these changes are things that, on a small scale, we are used to witnessing every day in the form of weather, such as w

Mineral Salts Chemical Explanation

Hello: What is the chemical explanation as to why salts of water borne minerals scale on the inside of water piping, specifically carbon steel or stainless steel piping? I know that more alkaline pH will produce many calcium, aluminum, iron, sodium, and magnesium salts in water systems. But is there a particular pH rang

Classifications and Types of Measurement

Please help with the following problem. If your DV requires you to classify students by their major (e.g., accounting, human resources, health services, financial management, etc.), what type of measurement scale do you have?

Which measurement is more important the Mode, the Mean, or the Median?

From a business perspective, which measurement is more important the Mode, the Mean, or the Median? Provide examples (business related) that demonstrate the appropriateness of one of these measures and the inappropriateness of the other two in a particular situation. Can you think of situations where another one of the measu

Java OOP Practice

/** Class that maintains a Celsius or Fahrenheit temperature value */ class Temperature { /** Temperature value */ private double value; /** Scale, either "C" for Celsius or "F" for Fahrenheit */ private char scale; // -------------------------------- // ----- ENTER YOUR

Scales of measurement, True/False, Mode, Range

1. Indicate whether the variable is qualitative or quantitative and the level of measurement for the variable (nominal, ordinal, interval, or ratio). Variable Qualitative Quantitative Nominal Ordinal Interval Ratio Color vision status - colorblind or not colorblind Anxiety rating - highly anx

Global Warming - Data Collection and Analysis

I need help with data collection (primary sources) on global warming. I need to be able to describe the methods I used to collect the primary data and then be able to analyze it. Any help would be appreciated!

Statistics Questions: Kelvin Scale

I think the Kelvin scale is a ratio scale. I think interval scales are widely used in the behavioral sciences. Do you disagree with either? If so, why? I asked, "What does it mean to be below Fahrenheit?" "The statement Probability of body temperature is below Fahrenheit is 0.05 means that only 5% (250 persons in 5000 ) ha

Scale of measurements

? Imagine that you are a researcher who has collected data from 5,000 participants on a variable of interest that is likely to be normally distributed. ? Describe the variable. Is the scale of measurement nominal, ordinal, interval, or ratio? Why? ? What does it mean to say that this variable is "normally distributed"? ?

Pressure of a gas

A 35 cubic foot rigid tank has propane at 15psia, 540 R and is connected by a valve to a 20 cubic foot tank containing propane at 40 paia, 720 R. The valve is opened and the 2 tanks come to a uniform state at 600 R. What is the final pressure?

Sampling methods and level of measurements.

1) American On Line ran a poll of its Internet subscribers and asked this question - Should the World Trade Center towers be rebuild?" among the 1,304.240 response : 768, 731 said Yes and 286, 756 answered NO and 248,753 said that they were "undecided". Being that this sample is extremely large can the responses be considered to

Mass of air in a room.

Find out the mass of the air in a room 3.00m by 4.00m by 5.00m given that the temperature is 200 C at atmospheric pressure (1atm = 101000 Pa) Given that, Universal gas constant R = 8.314 J/ mol K, Boltzmann’s constant kB = 1.38 x 10-23 J/K Mass to mole ratio of air = 0.029 kg/mol