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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![An immersion heater rated 400W, 220V is used to heat a liquid of mass 0.5kg. If the temperature of the liquid increases uniformly at the rate of 2.5ºC per second, calculate the specific heat capacity of the liquid. [Assume no heat is lost]](https://erudites.ng/wp-content/plugins/contextual-related-posts/default.png "An immersion heater rated 400W, 220V is used to heat a liquid of mass 0.5kg. If the temperature of the liquid increases uniformly at the rate of 2.5ºC per second, calculate the specific heat capacity of the liquid. [Assume no heat is lost]")
