Order Homework Help from Pro Experts

# Temperature and Its Measurement

Need help with your homework? Look no further! Our subject experts are ready to effortlessly handle your assignments, so you can finally say goodbye to stress and hello to top grades.

Click or drag files to this area to upload. You can upload up to 3 files.
Get a response in under 15 min

The introduction to temperature measurement is well explained by the zeroth law of thermodynamics. Therefore to gain a measure of temperature a reference body whose characteristics are known to us with all probable changes in temperature. This is called the thermometric property, and the reference body is referred to as a thermometer. We are aware that in conventional thermometers Expansion of mercury is utilised. A table is given below table 2.1 which lists the type of thermometers along with its property.

Table 2.1

1. No               Thermometer               Thermometric property                       Symbol
2.                     Mercury-in-glass                     Length                                      L
3.                     Constant volume gas               Pressure                                      p

3 .                    Electrical resistance                 Resistance                                R

1.            Constant pressure gas               Volume                                     V
2. Thermocouple                        Thermal Electromotiveforce  E

2.2.1 Empirical Relations between Temperature and Thermometric Property

Let us consider that x be the thermometric property and temperature of a linear function (straight proportionality) of x. So, arithmetically we get,

f(x) = nx

where a is a random constant.

If x1resembles to f (x1), then x2 can be calculated as follows.

f(x1) = ax1

a = f (x) / x1 inserting this in equation (2 .1 ) we get

f (x) = f (x) / x1 .x

x = x2 we get from (2.2)

f (x2) = f (x1) / x1 . x2

f (x2) / f (x1) = x2 / x1

Equation (2.3) displays that two temperatures on the linear x scale are as the proportion of the analogousanalyses i.e., x2 and x1.

2.2.2 Method Used Before 1954

Let us assume,                            f(x) = ax + b                                                   … (2.4)

At first the thermometer is located in connection with a standard system and the temperature is thus measured. Let us consider x1 as the reading, therefore:

f (x1) = ax1 + b

nowthe thermometer is measured with other standard systems and let us consider the temperature as x2, so we get:

f (x2)  = ax2  +b

Solving (2.5) and (2.6) for a and b,

F(x1) – (x2) = a (x1 –x2)

A = f (x1) – f (x2) /  x1 –x2

(2.5)  => b = f (x1) – ax1

= f(x1) – f(x1) – f(x2) / x1 – x2 .x1

= x1 f (x1) – x2 f (x1) – x1 f( x1) + x1 f (x2) / x1 –x2

b = x1 f (x2) – x2 f(x1) / x1 –x2

now putting the value of a and b in (2.4), we get

F(x) = f(x1) – f(x2) / x1 –x2 .x + x1 f(x2) – x2 f (x1) / x1 –x2

Note : If b = 0 then equation (2.7) decreases to

F(x) = f(x1) – f(x2) / x1 –x2 .x

and we obtain b = 0 = x1 f(x2) –x2 f (x1) / x1 –x2)

The two most commonly used scales of measure are Celsius scale (C) and farenheit scale (F). there was two fixed points which was used as steam points( boiling point) and ice points (freezing point) before 1954.

Temperature                Celsius scale               Fahrenheit scale

Steam point                         100                              212

Ice point                                 0                                  32

Interval                            100 degrees                 180 degrees

100 -0 /C -0 = 212 – 32 /F -32

100 / C = 180 / F -32

5 /C = 9 / F -32

C /5 = F -32 / 9

2.2.3 Method in Use On and After 1954

However, after 1954, Kelvin recommended that there be one fixed point which is important to create a temperature scale. The triple point of water can also be considered as a fixed point. The value of a triple point is 0.01oC or 273.16 K. Individually, the ice point of 0 o c on Celsius scale and if converted then it becomes 273.15 K on Kelvin scale.

Let us consider to C as Celsius scale and T for Kelvin scale.

Then we get,

Tin Kelvin= 273.15 + to C.

The triple point of water on the Fahrenheit scale is 32.02F

for Rankine scale is 491.69R

T  in Rankine scale = 459.67 toF

Table 2.2

Fixed point             Celsius             Kelvin            Falzrenlieit                  Rankine

Steam point                 100                  373.15             212                              671.67

Triple point of water   0.01                 273.16            32.02                           491.69

Ice point                       0                     273.15             32                                491.67

Absolute zero           – 273.15          0                – 459.67                          0

Links of Next Mechanical Engineering Topics:-

## Homework Blues?

Get expert help with homework for all subjects.

• NPlagiarism-free work
• NHonest Pricing
• NMoney-back guarantee

## Solved Sample Works

### Accounting Homework

Corporate Accounting Sample

### Biology Homework

Genetics Assignment Sample

## Homework Help FAQs

##### How do I submit my homework?
K
L

Getting homework help is very simple with us. Students can either send us the homework via email or they can upload it to our online form here. For a quicker response, You can also chat with us at WhatsApp and submit homework directly. You are sure to get a response from our side within 10 minutes.

##### How much will my homework cost?
K
L

The cost of paying someone to do your homework varies depending on the service and the type of assignment. We have listed our standard pricing plans for popularly used writing services. For other kind of assignments, You can get a free instant quote from us using our online form.

We also accept partial payment to start working on your assignment help. You can pay the remaining amount when your task gets completed. No pressure of up-front payment. No hidden order costs.

##### Can I receive help with my homework anytime?
K
L

Yes, you can receive help with your homework anytime with us. Our online homework help services are available 24/7, allowing you to receive assistance with your homework anytime, anywhere.

For urgent homework requests, reach out to us through our LiveChat or WhatsApp channels and one of our friendly support agents will assist you in finding the right expert for your online homework help request immediately. With our services, you can rely on 24/7 availability and meeting deadlines.

##### Are online homework websites budget-friendly for students like me?
K
L

Yes, Our Online Homework Help websites are an affordable solution for you as a student. Compared to traditional tutoring services, MyHomeworkHelp prices their homework help services honestly and within the budget of college students. This makes it easier for you to receive assistance with your homework without breaking the bank.

##### What is your plagiarism-free policy?
K
L

At myhomeworkhelp, we take plagiarism very seriously and ensure that all solutions provided by our tutors are original and authentic. Our tutors are trained to provide custom-made solutions, tailored specifically to meet the requirements of each student. We do not provide pre-written papers. All our homeswork solutions are made from scratch, guaranteeing 100% orignal homework answers.

Additionally, we have strict plagiarism-detection tools in place to check all submissions for authenticity.

##### Is using an Online Homework Help Service cheating?
K
L

Using online homework help services is not equivalent to cheating. Our services are intended to support students with their homework and provide them with the resources they need to succeed academically. With the help of our online homework help services, students can receive immediate assistance with their homework from any location, at any time.

At myhomeworkhelp, we are committed to promoting academic integrity. Our tutors provide solutions that serve as guides for drafting your own work. It is not acceptable to submit someone else's work as your own, as this constitutes academic plagiarism.

##### Can I chat with my tutor?
K
L

Using our secure chat board, you can now chat directly with your assigned tutor. The chats are encrypted both ways to secure your privacy. This makes your contact with the tutor directly & confidentially, so you can better explain any requirements or changes if needed or just need updates.

You can't contact the experts outside of chat board platform. Sharing any personal information, including but not limited to contact information, goes against our Terms and Conditions and therefore may result in permanently blocking you from the platform. We take any personal data very seriously and we do it for the safety of our users.

##### What is your money-back guarantee policy?
K
L

It’s worth noting that our online homework help service rarely leads to disappointment among students. Our expert tutors, along with our support and quality assurance team, are dedicated to providing the best possible experience for our customers. However, if for any reason a student is unsatisfied with their homework help solution, we offer unlimited revisions until they are fully satisfied.

In the rare event that a student remains unsatisfied even after revisions, we offer a money-back guarantee. We want all of our students to feel confident and secure when they turn to us for assistance with their homework, and this guarantee is just one way that we demonstrate our commitment to providing the best possible service. If you have any concerns about our services or the quality of the work you receive, please contact us for support.

##### What is the expertise of the tutor assigned to do my homework?
K
L

At myhomeworkhelp, we take pride in our team of qualified and experienced tutors. All of our tutors undergo a rigorous selection process and are required to have a minimum of a master's degree in their respective fields. Additionally, they must pass a series of tests to demonstrate their proficiency and ability to deliver quality work. We believe in transparency and providing our clients with the best possible service. You can be confident in the expertise of the tutor assigned to do your homework.

##### What about privacy & confidentiality?
K
L

Using My Homework Help is absolutely safe. We care about your security, therefore we encrypt all personal data to make every user feel safe while using our services and we don’t share any personal information with any third parties without your permission. Your credit card information is not stored anywhere at My Homework Help, and use of PayPal relies on their secure payment networks. Your identity, payment and homework are in safe hands. You can always be certain of getting professional help and remaining anonymous, while using My Homework Help.