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प्रश्न
How does green house effect help in keeping the temperature of earth’s surface suitable for living of human beings?
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उत्तर
From sun, we receive 1366W m-2 energy at the top of our earth's atmosphere, out of which only 235Wm-2 energy reaches near the earth's surface. The earth and ocean surface absorbs 168 W m-2 energy and only 67 W m-2 energy remains in the lower atmosphere. With this much energy received on earth surface, its actual surface temperature would have been around -180C which is quite uncomfortable for human living. Fortunately the greenhouse gases present in the earth's atmosphere contribute in trapping the heat energy within the atmosphere and they produce an average warming effect of about 330C to keep the effective temperature around 150C. So, greenhouse effect helps in keeping the temperature of earth's surface suitable for living of human beings.
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?
Differentiate between heat capacity and specific heat capacity.
Name two green house gases ?
The product of mass and specific heat is known as ..........
A solid of mass 80 g at 80°C is dropped in 400 g water at 10°C. If final temp. is 30°C, find the sp. heat cap. of the solid.
From the options given below the specific heat of _______ is maximum.
Explain why the specific heat capacity at constant pressure is greater than the specific heat capacity at constant volume.
The specific heat capacity of water is ______.
The difference between the two molar specific heats of gas is 9000 J/kg K. If the ratio of the two specific heats is 1.5, calculate the two molar specific heats.
