Description
100 Level Department of Science Laboratory Technology exam questions and detailed answers. Download the answers in document format. Correct, detailed, and straightforward answers.
Questions:
(a) Explain the working principle of a clinical thermometer with a good labelled diagram.
ii. List the properties of a liquid that is suitable for use as a thermometric substance.
B (i) Give two advantages and disadvantages of mercury-in-glass thermometer and alcohol-in-glass thermometer.
(ii) Differentiate between temperature and heat.
C. If 100g of water at 70°C is mixed with 200g of cold water at 10°C, what will be the final temperature of the mixture? (Neglect heat absorption by the containers).
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![A solid of mass 0.5kg initially at 50oC melts at 60oC. Calculate the quantity of heat required to melt it completely. [specific heat capacity of the solid =2.0KJ kg-1K-1][Specific latent heat of fusion of solid =1.0 KJ kg-1]](https://erudites.ng/wp-content/plugins/contextual-related-posts/default.png "A solid of mass 0.5kg initially at 50oC melts at 60oC. Calculate the quantity of heat required to melt it completely. [specific heat capacity of the solid =2.0KJ kg-1K-1][Specific latent heat of fusion of solid =1.0 KJ kg-1]")
