Advertisements
Advertisements
प्रश्न
Explain, why temperature in hot summer, falls sharply after a sharp shower?
Advertisements
उत्तर
Water has the highest specific heat capacity of 4.2 Jg-1 °C-1. Thus, when there is a sharp shower, the water evaporates. In doing so, it absorbs a large amount of heat from surroundings, hence temperature falls sharply.
संबंधित प्रश्न
What amount of heat must be supplied to 2.0 x 10-2 kg of nitrogen (at room temperature) to raise its temperature by 45 °C at constant pressure? (Molecular mass of N2 = 28; R = 8.3 J mol-1 K-1.)
Two metallic blocks P and Q of masses in ratio 2: 1 are given the same amount of heat. If their temperature rise by the same amount, compare their specific heat capacities.
How will rise in sea level affect population in coastal countries?
What is carbon tax?
(i) State whether the specific heat capacity of a substance remains the same when its state changes from solid to liquid.
(ii) Give one example to support your answer.
Derive Meyer’s relation for an ideal gas.
Two metals A and B have specific heat capacities in the ratio 2:3. If they are supplied same amount of heat then
Which metal piece will have greater mass if the rise in temperature is the same for both metals?
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?
