i) It is observed that the temperature of the surroundings starts falling when the ice in a frozen lake starts melting. Give a reason for the observation.
ii) How is the heat capacity of the body related to its specific heat capacity?

Solution

i) When ice converts into water a high amount of heat energy is required. Therefore, when frozen lake starts melting it absorbs a large amount of heat from the surroundings. As a result, the temperature of the surrounding falls and it becomes very cold.

ii) Heat capacity = mass (m) x specific heat capacity (L)

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

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Calorimetry

i) It is observed that the temperature of the surroundings starts falling when the ice in a frozen lake starts melting. Give a reason for the observation.
ii) How is the heat capacity of the body related to its specific heat capacity?

Some More Questions From Calorimetry Chapter

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

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For Daily Free Study Material Join wiredfaculty

Calorimetry

i) It is observed that the temperature of the surroundings starts falling when the ice in a frozen lake starts melting. Give a reason for the observation. ii) How is the heat capacity of the body related to its specific heat capacity?

Some More Questions From Calorimetry Chapter

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.

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

i) It is observed that the temperature of the surroundings starts falling when the ice in a frozen lake starts melting. Give a reason for the observation.
ii) How is the heat capacity of the body related to its specific heat capacity?

i) State any two measures to minimize the impact of global warming.
ii) What is the Greenhouse effect?

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