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The temperature of 10 g nitrogen gas is ...

The temperature of 10 g nitrogen gas is increased from `20^(@)C` to `120^(@)C`
(ii) at constant pressure. Find out the amount of heat supplied, increase in internal energy and external work done in the case. For nitrogen
`c_(v) = 0.177 cal cdot g^(-1) cdot^(@)C^(-1)` and
`c_(p) = 0.248 cal cdot g^(-1) cdot^(@)C^(-1)`.

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The correct Answer is:
`248 cal, 177 cal, 71 cal`
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The temperature of 10 g nitrogen gas is increased from 20^(@)C to 120^(@)C (i) at constant volume. Find out the amount of heat supplied, increase in internal energy and external work done in the case. For nitrogen c_(v) = 0.177 cal cdot g^(-1) cdot^(@)C^(-1) and c_(p) = 0.248 cal cdot g^(-1) cdot^(@)C^(-1) .

The temperature of 20 g of oxygen gas is raised from 50^(@)C to 100^(@)C . (ii) At constant pressure. Find out the amount of heat supplied and the rise in internal energy in case. Given , R = 2 cal cdot mol^(-1) cdot K^(-1) , for oxygen, c_(v) = 0.155 cal cdot g^(-1) cdot^(@)C^(-1) .

The temperature of 20 g of oxygen gas is raised from 10^(@)C to 90^(@)C . Find out the heat supplied, the rise in internal energy and the work done by the gas, if the temperature rises at (i) constant volume. (ii) constant pressure. Given the specific heats of oxygen are 0.155 cal cdot g^(-1) cdot^(@)C^(-1) at constant volume, and 0.218 cal cdot g^(-1) cdot^(@)C^(-1) at constant pressure.

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What will be the change in internal energy if 10 g of air is heated from 20^(@)C to 30^(@)C at constant volume? Given , for air, c_(v) = 0.17 cal cdot g^(-1) cdot^(@)C^(-1) .

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What will be the change in internal energy of 128 g of oxygen gas at constant volume when it is heated from 30^(@)C to 45^(@)C ? The molar specific heat of oxygen at constant pressure is C_(p) = 7.03 cal cdot mol^(-1) cdot^(@)C^(-1) and R = 8.31 J cdot mol^(-1) cdot^(@)C^(-1) .

CHHAYA PUBLICATION-FIRST AND SECOND LAW OF THERMODYNAMICS-Exercise - Hots Numerical Problems (Marks 3/4/5)
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  9. The temperature of 10 g nitrogen gas is increased from 20^(@)C to 120^...

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  11. Some amount of gas is compressed at STP in an (ii) isothermal process ...

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  12. The initial volume of a gas is 2m^(3). When the gas is compressed adia...

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  15. The specific heat of air at constant volume is 0.1684 cal cdot g^(-1) ...

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  16. 1 mol oxygen is kept in an insulated closed vessel. The vessel is sudd...

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  17. If C(p) = 6.85 cal cdot mol^(-1) cdot^(@)C^(-1), C(v) = 4.87 cal cdo...

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  18. Specific heat of argon at constant pressure and at constant volume are...

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  19. Air is being pumped into the tyre of a car at a specific pressure. Whe...

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