मराठी

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-1. Which of the Two is a Good Conductor of Heat? - Physics

Advertisements
Advertisements

प्रश्न

Specific heat capacity of substance A is 3.8 J g-1 K-1whereas the specific heat capacity of substance B is 0.4 J g-1 K-1. Which of the two is a good conductor of heat? How is one led to this conclusion?

टीपा लिहा
Advertisements

उत्तर

Specific heat capacity ‘A’ 3.8 J/g/K. Specific heat capacity ‘B’ 0.4 J/g/K
‘B’ is a good conductor of heat.
Since specific heat capacity is the energy required to raise the temp. of 1 g of a substance 1°C. So less heat energy passes through the substance.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 10: Specific Heat Capacity and Latent Heat - Short Answers

APPEARS IN

आईसीएसई Physics [English] Class 10
पाठ 10 Specific Heat Capacity and Latent Heat
Short Answers | Q 28

संबंधित प्रश्‍न

In an experiment on the specific heat of a metal, a 0.20 kg block of the metal at 150 °C is dropped in a copper calorimeter (of water equivalent 0.025 kg) containing 150 cm3 of water at 27 °C. The final temperature is 40 °C. Compute the specific heat of the metal. If heat losses to the surroundings are not negligible, is your answer greater or smaller than the actual value for the specific heat of the metal?


Calculate the mass of ice needed to cool 150 g of water contained in a calorimeter of mass 50 g at 32 °C such that the final temperature is 5 °C. Specific heat capacity of calorimeter = 0.4 J g-1 °C-1, Specific heat capacity of water = 4.2 J g-1°C-1, latent heat capacity of ice = 330 J g-1.


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


State the impact of global warming on life on the earth.


State three ways to minimize the global warming.


(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?


Explain, why temperature in hot summer, falls sharply after a sharp shower?


Explain, Why is it advisabile to pour cold water over burns, caused on human body, by hot solids?


Consider the statement given below and choose the correct option.

Assertion: Radiation is a form of heat transfer which takes place only in vacuum.

Reason: The thermal energy is transferred from one part of a substance to another part without the actual movement of the atoms or molecules.


Numerical Problem.

What could be the final temperature of a mixture of 100 g of water at 90 °C and 600g of water at 20°C.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×