हिंदी

Specific heat capacity of a substance A is 3.8 J g-1 K-1 and of substance B is 0.4 J g-1 k-1. Which substance is a good conductor of heat? How did you arrive at your conclusion?

Advertisements
Advertisements

प्रश्न

Specific heat capacity of a substance A is 3.8 J g-1 K-1 and of substance B is 0.4 J g-1 k-1. Which substance is a good conductor of heat? How did you arrive at your conclusion?

लघु उत्तरीय
Advertisements

उत्तर

The specific heat capacity of substance B is lesser than that of A. So, for same mass and same heat energy, the rise in temperature for B will be more than that of A. Hence, substance B is a good conductor of heat.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 11: Calorimetry - EXERCISE-11(A) [पृष्ठ २७०]

APPEARS IN

सेलिना Concise Physics Part 2 [English] Class 10 ICSE
अध्याय 11 Calorimetry
EXERCISE-11(A) | Q 15. | पृष्ठ २७०

संबंधित प्रश्न

Water is used in hot water bottles for fomentation. Give a reason.


Why do bottled soft drinks get cooled, more quickly by the ice cubes than by the iced water, both at 0℃?


Read the following paragraph and answer the questions.

If heat is exchanged between a hot and cold object, the temperature of the cold object goes on increasing due to gain of energy and the temperature of the hot object goes on decreasing due to loss of energy.

The change in temperature continues till the temperatures of both the objects attain the same value. In this process, the cold object gains heat energy and the hot object loses heat energy. If the system of both the objects is isolated from the environment by keeping it inside a heat resistant box (meaning that the energy exchange takes place between the two objects only), then no energy can flow from inside the box or come into the box.

  1. Heat is transferred from where to where?
  2. Which principle do we learn about from this process?
  3. How will you state the principle briefly?
  4. Which property of the substance is measured using this principle?

What is the unit of heat capacity in CGS system?


(b) 2000 J of heat energy is required to raise the temperature of 4 kg of a
metal by 3°c. Which expression gives the specific heat capacity of the metal?


A substance is in the form of a solid at 0°C. The amount of heat added to this substance and the temperature of the substance are plotted on the following graph:

If the specific heat capacity of the solid substance is 500 J/kg °G, find from the graph, the mass of the substance.


If 'Cp' and 'Cv' are molar specific heats of an ideal gas at constant pressure and volume respectively. If 'λ' is the ratio of two specific heats and 'R' is universal gas constant then 'Cp' is equal to ______.


Specific heat capacity C =  ______.


Specific heat capacity of a substance X is 1900 Jkg-1°C-1 means ______.


Two blocks P and Q of different metals having their mass in the ratio 2 : 1 are given same amount of heat. Their temperature rises by same amount. Compare their specific heat capacities.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×