English

Observe the following diagram and answer the questions given below: Which element has maximum specific heat capacity? Justify. - Science and Technology 1

Advertisements
Advertisements

Question

Observe the following diagram and answer the questions given below:


       Specific heat capacity of metals

  1. Which element has maximum specific heat capacity? Justify.
  2. Which element has minimum specific heat capacity? Justify.
  3. Define specific heat of object.
Short Note

Solution

  1. Maximum specific heat capacity is found in iron. The lead sphere absorbs less heat, which results in less heat transmission in the wax, so the sphere reaches the least depth into the wax in the activity. In contrast, the iron sphere absorbs more heat, which results in more heat transmission in the wax, so the sphere goes the deepest into the wax.
  2. A minimal specific heat capacity exists for lead. The lead spherical penetrates the wax the least because it absorbs less heat and transmits less heat to the wax.
  3. The amount of heat energy required to raise the temperature of a unit mass of an object by 1°C is called the specific heat of that object.
shaalaa.com
  Is there an error in this question or solution?
2022-2023 (March) Official

RELATED QUESTIONS

A copper vessel of mass 100 g contains 150 g of water at 50°C. How much ice is needed to cool it to 5°C?

Given: Specific heat capacity of copper = 0.4 Jg-1 °C-1

The Specific heat capacity of water = 4.2 Jg-1 °C-1

The Specific latent heat of fusion ice = 336 Jg-1


Heat supplied to a solid change it into liquid. What is this change in the phase called?


Write the approximate value of specific heat capacity of water in S.I. unit.


Water property of water makes it an effective coolant?


Describe a method to determine the specific heat capacity of a solid, like a piece of copper ?


Find the time taken by a 500 W heater to raise the temperature of 50 kg of material of specific heat capacity 960 J kg-1K-1, from 18°C to 38° C. Assume that all the heat energy supplied by the heater is given to the material.


Explain the term boiling point ?


Name the radiations for which the green house gases are transparent ?


Without green house effect, the average temperature of earth’s surface would have been:

(a) – 18℃

(b) 33℃

(c) 0℃

(d) 15℃


How will you prove experimentally that different substances have different specific heat capacities?


Write the SI unit of specific heat.

Name the substance that has the maximum value of specific heat.

If substances A and B are liquids then which one would be more useful in car radiators?
Given: Specific heat capacity’A’ 3.8 J/g /K. Specific heat capacity ‘B’ 0.4 J/g /K.


Is it possible to condense the water formed, back to ice by adding ice at 0°C. Explain with reason.


The molar specific heat of an ideal gas at constant pressure and constant volume is 'Cp' and 'Cv' respectively. If 'R' is the universal gas constant and the ratio 'Cp' to 'Cv' is 'γ' then CV = ______.


Two cylinders of equal height and radius are made of copper and aluminum. Which of them conducts heat faster?


We would like to make a vessel whose volume does not change with temperature (take a hint from the problem above). We can use brass and iron `(β_(vbrass) = (6 xx 10^(–5))/K and β_(viron) = (3.55 xx 10^(–5))/K)` to create a volume of 100 cc. How do you think you can achieve this.


The specific heat capacity of ______ is maximum.


Calculate the amount of heat energy required to raise the temperature of 200 g of copper from 20°C to 70°C. Specific heat capacity of copper = 390 J kg-1 K-1.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×