100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
BTEC Applied Science Unit 2, Assignment B (FULL ASSIGNMENT) £7.48
Add to cart

Essay

BTEC Applied Science Unit 2, Assignment B (FULL ASSIGNMENT)

 64 views  0 purchase

This is a BTEC Applied Science Unit 2 Assignment B that received a distinction grade. It serves as an example of work at a Distinction level, which you can refer to as a guide to help you achieve a distinction in completing your own assignment. Feel free to message me with any questions.

Preview 2 out of 23  pages

  • August 22, 2024
  • 23
  • 2024/2025
  • Essay
  • Unknown
  • A+
book image

Book Title:

Author(s):

  • Edition:
  • ISBN:
  • Edition:
All documents for this subject (365)
avatar-seller
imaan5
Unit 2: Practical Scientific Procedures and Techniques
Unit 2B: Undertake calorimetry to study cooling curves
Vocational Scenario:
I am a newly appointed technical assistant at a large chemical plant, Chemicalequip. As part of my
induction period and to progress in your role, I have to demonstrate skills in a range of practical
procedures and techniques. Part of my role is to ensure equipment is calibrated and equipment and
chemicals are safety checked. I need to demonstrate my ability to use a calorimeter and associated
equipment to obtain data to determine, analyse and evaluate the rate of cooling of substances. I will
need to present evidence of your practical skills analysis and evaluation in a report.


Practical 1: Calibration of a digital and liquid thermometer
Calibration:
Calibration is an essential process when performing scientific experiments. Many equipment used
needs to be calibrated such as weighing balances, colorimeters and even pipettes. We calibrate
equipment to make sure we get the most accurate readings by making sure everything is at 0 before
using the equipment. In this experiment we will be focusing on the calibration of thermometers.
Calibration of thermometers is important as we need accurate readings of the temperature.

Thermometers:
There are two types of thermometers electronic, and liquid filled, and we will be using a
thermometer of each of these types. There are four types of liquid filled thermometers
thermometer such as alcohol in glass and mercury in glass and there are four types of electronic
thermometer such as thermistor, resistance, thermocouple, rotary and Infrared.

For the liquid filled thermometer we will be using an alcohol in glass thermometer instead of a
mercury in glass due to the mercury in glass thermometer being toxic if the mercury is released. An
alcohol thermometer has a certain amount of alcohol in the glass tube, and it will widen as the
temperature increases and if the alcohol is released it will not harm anybody. For the electronic
thermometer we will be using a digital thermometer, A digital thermometer is different to the
alcohol in glass thermometer as it will display the number on a little screen for you as opposed to
you having to physically read it off the thermometer so it’s more accurate in that sense and there’s
no substance in it such as alcohol or mercury.

, Image reference: https://www.fromagex.com/int_en/alcohol-glass-thermometer-20-to-110-c.html

Image reference: https://www.3bscientific.com/us/digital-pocket-thermometer-1010219-
u29627,p_1136_17979.html



Aim:
To efficiently calibrate a liquid and digital thermometer.



Equipment:
 Two 250ml Beakers
 Digital thermometer
 Liquid thermometer (alcohol)
 Stopwatch
 Ice
 Kettle
 Distilled water
 Pen
 Paper

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller imaan5. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for £7.48. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

53022 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now

Start selling
£7.48
  • (0)
Add to cart
Added