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प्रश्न
Name the greenhouse gases.
उत्तर
Carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), and water vapours.
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संबंधित प्रश्न
(a) Calculate the heat capacity of a copper vessel of mass 150g if the specific heat capacity of copper is `410 J kg^-1 K^-1`
(b) How much heat energy will be required to increase the temperature of the vessel in part (a) from 25°C to 35°C?
(i) Name the physical quantity which is measured in calories.
(ii) How is calorie related to the S.I. unit of that quantity ?
Give scientific reasons for the following:
It is much easier to skate on rough ice than on glass.
100 g of ice at -10°C is heated. It is converted into steam. Calculate the quantity of heat which it has consumed. (Sp. heat of ice = 2100J/kg°C, sp. heat of water= 4200 J/kgK, sp. heat of water = 42000 J/kgK, sp. latent heat of ice = 2260000 J/kg).
Calculate the time taken by an immersion heater, which supplies energy at the rate of 7000 J/minute to raise temp. of 5 kg water from 22°C to 47°C.
Fill in the following blank using suitable word:
Evaporation causes ..........
Which has more heat: 1 g of ice at 0°C or 1 g of water at 0°C? Give reason.
Explain briefly, how you would determine the specific heat capacity of a liquid?
