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Calorimetry
Question
Wired Faculty App

i) State any two measures to minimize the impact of global warming.

ii) What is the Greenhouse effect? 

Answer

i) Two measures to minimize the impact of global warming are:

a) Use of renewable sources of energy in place of electricity from the power generation station.

b) Use of biogas stoves for cooking.

ii) The greenhouse effect is the phenomenon in which infrared radiations of long wavelength given out from the surface of the earth are absorbed by its atmospheric gases to keep the environment at the earth’s surface and the lower atmosphere, warm. 

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Some More Questions From Calorimetry Chapter

Specific Heat Capacity of substance A is 3.8 J g-1 K-1 whereas the specific heat capacity of substance B is 0.4 J g-1 K T-1.

i) Which of the two is a good conductor of heat?

ii) How is one led to the above conclusion?

iii) If substances A and B are liquids then which one would be more useful in car radiators? 

i) State any two measures to minimize the impact of global warming.

ii) What is the Greenhouse effect? 

Differentiate between heat capacity and specific heat capacity. 

A piece of ice at 0o C is heated at a constant rate and its temperature recorded at regular intervals till steam is formed at 100o C. Draw a temperature-time graph to represent the change in phase? Label the different parts of your graph.