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asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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Calculate the amount of heat necessary to raise the temperature of 2 moles of HEgas from `20^oC` to `50^oC` using:-1) Constant – Volume Process 2) Constant Pressure Process Here for, He; `CV = 1.5 R and CP =

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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What is critical temperature? How will you differentiate between a gas and a vapour depending on critical

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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If for hydrogen `C_P – C_V = a` and for oxygen `C_P – C_V = b` where `C_P & C_V` refer to specific heat at constant pressure and volume then what is the relation between a and

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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Which has a higher specific heat ; water or

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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Why is latent heat of vaporization of a material greater than that of latent heat of

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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Draw a P – V diagram for Liquid and gas at various temperatures showing critical

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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If for a gas, `R/(C_V)= 0.67` then which gas is this:- monatomic, diatomic and tri

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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A 50g lead bullet, specific heat `0.02 cal |g | '^C` is initially at `30^oC`. It is fixed vertically upward with a speed of `840m |s` and on returning to the starting level strikes a cake of ice at `0^oC`. How much ice is melted? Assume that all energy is spent in melting ice

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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A gas mixture consists of 2 moles of oxygen and 4 moles of argon at temperature T. If we neglect all vibration modes, find the total energy of the

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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Show that `C_P - C_V = R` Where `[C_P =` specific heat at constant pressure ; `C_V =` specific heat at constant volume and R = Universal Gas constant] for an ideal

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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How do you justify that when a body is being heated at melting point, the temperature remains

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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If half mole of helium is contained in a container at S. T. P. How much heat energy is needed to double the pressure of the gas, keeping the volume of the gas constant? Given specific heat of gas `= 3J | g

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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Draw and explain a P – T diagram for water showing different

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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From what height should a piece of ice fall so that it completely melts? Only one – quarter of heat produced is absorbed by the ice. Given latent heat of ice is `3.4 × 10^5 J | Kg` and acceleration due to gravity, `g = 10m| s^2`

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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On a winter night, you feel warmer when clouds cover the sky than when sky is clear.

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If a body is heated from `27^o C` to `927^oC` then what will be the ratio of energies of radiation

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Two rods A and B are of equal length. Each rod has its ends at temperatures T1 and T2. What is the condition that will ensure equal rates of flow of heat through the rods A and

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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A layer of ice 10cm thick is formed on a pond. The temperature of air is `– 10^oC`. Calculate how long it will take for the thickness of ice to increase by 1mm. Density of ice` = 1g|cm^3`; Thermal conductivity of ice `= 0.005Cal|s|cm|^oC`; Latent heat of ice `= 80Cal|g`

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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Two conducting slabs of thermal conductivities K1 and K2 are joined as shown in the figure. The temperature of the ends of slab are `θ_1 and θ_2 (θ_1 > θ_2)`. Find the final temperature of

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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