Temperature as Measure of Hotness and Coldness and It's Units

Physics

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Temperature

Temperature is a quantity which tells the thermal state of a body (i.e. the degree of hotness or coldness of the body).
Its units are: Kelvin(), degree celsius() and degree fahrenheit().  

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Temperature measuring instruments

Some instruments to measure temperature are thermometer, thermocouple, thermistor etc.

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Classification of Hot and Cold Objects

An object is considered hot if its temperature rises from normal temperature. For  example : fire,vessel on fire,burning coal, etc.
An object is considered cold if its temperature reduces or its very low.For example : Ice cubes and dry ice. 

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Important Questions

A circular metal loop is heated at point as shown in above Figure.
i) In which direction would heat flow in the loop?
ii) In which order the pins at points P, Q and R fixed with the help of wax fall if points O, P, Q and R are equidistant from each other?

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In terms of Charles' law, explain why - 273  is the lowest possible temperature.

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mole of is mixed with moles of NaOH. The heat evolved will be:

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When two bodies at different temperatures are placed in thermal contact with each other, heat flows from the body at a higher temperature until they both acquire the same temperature. Assuming that there is no loss of heat to the surroundings, then:

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 The value of absolute zero temperature in Fahrenheit scale is 

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Figure shows two flasks connected to each other. The volume of the flask 1 is twice that of flask 2. The system is filled with an ideal gas at temperature 100 K and 200 K respectively in the flasks. If the mass of the gas in 1 m, then what is the mass of the gas in flask 2 in equilibrium?

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A wooden spoon is dipped in a cup of ice cream. It's another end

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Absolute zero can be defined as the temperature at which:

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For the reaction :
Find the heat evolved when mole of A reacts with an excess of B in a closed rigid container. The temperature is constant at . [R=8.3 J/K mole]

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5g of ice at is mixed with 5 g of steam at what is the final temperature?

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