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प्रश्न
Answer the following question based on the P-T phase diagram of carbon dioxide:
What is the effect of decrease of pressure on the fusion and boiling point of CO2?
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उत्तर
The fusion and boiling points of CO2 decrease with a decrease in pressure.
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संबंधित प्रश्न
Answer the following question based on the P-T phase diagram of carbon dioxide:
Is CO2 solid, liquid or gas at
- –70 °C under 1 atm,
- –60 °C under 10 atm,
- 15 °C under 56 atm?
Answer the following questions based on the P–T phase diagram of CO2:
CO2 at 1 atm pressure and temperature – 60 °C is compressed isothermally. Does it go through a liquid phase?
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Answer the following questions based on the P–T phase diagram of CO2:
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Explain why a body with large reflectivity is a poor emitter
A metal block of heat capacity 80 J°C−1 placed in a room at 20°C is heated electrically. The heater is switched off when the temperature reaches 30°C. The temperature of the block rises at the rate of 2°C s−1 just after the heater is switched on and falls at the rate of 0.2°C s−1 just after the heater is switched off. Assume Newton's law of cooling to hold.
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- Find the power radiated by the block when the temperature of the block is 25°C.
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Answer the following question based on the P-T phase diagram of carbon dioxide:
At what temperature and pressure can the solid, liquid and vapour phases of CO2 co-exist in equilibrium?
Answer the following question based on the P-T phase diagram of carbon dioxide:
What are the critical temperature and pressure for CO2? What is their significance?
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Latent heat of a substance is best defined as ______.
Relation between heat Q, mass mmm, and specific latent heat L ______.
In a heating curve of ice and water, which part represents the latent heat of fusion?
Which statement best explains why the temperature of boiling water remains constant at 100°C until all the water has changed to steam (at 1 atm)?
Why is the latent heat of vaporisation much greater than the latent heat of fusion?
The heating curve below shows temperature vs. heat added for ice, water and steam at 1 atm ______.
