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?
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.
संबंधित प्रश्न
Write the approximate value of specific heat capacity of water in S.I. unit.
45 g of water at 50°C in a beaker is cooled when 50 g of copper at 18° C is added to it. The contents are stirred till a final constant temperature is reached. Calculate this final temperature. The specific heat capacity of copper is 0.39 J g-1K-1 and that of water is 4.2 J g-1K-1. State the assumption used.
How will rise in sea level affect population in coastal countries?
How much heat energy is released when 5 g of water at 20° C changes to ice at 0° C?
[Specific heat capacity of water = 4.2 J g-1 ° C-1 Specific latent heat of fusion of ice = 336 J g-1]
A piece of iron of mass 2.0 kg has a thermal capacity of 966 J/°C. What is its specific heat capacity in S.I. units?
Decide the unit for specific heat capacity.
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.
Explain why the specific heat capacity at constant pressure is greater than the specific heat capacity at constant volume.
Water has the lowest specific heat capacity.
Thermal capacities of substances A and B are same. If mass of A is more than mass of B then:
Which substance will have more specific heat capacity?
