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Caluculate Change in internal energy whe...

Caluculate Change in internal energy when 5 moles of hydrogen is heated to `20^(@)C` from , Specific heat of hydrogen at constant pressure is 8 cal `("mol"^(@)C)^(-1)`

A

200 cal

B

350 cal

C

300 cal

D

450 cal

Text Solution

Verified by Experts

The correct Answer is:
C
Given , `C_(p)=8 "cal"("mol"^(@)C)^(-1)`
`C_(v)=C_(p)-R=8-2=6" cal "("mol"^(@)C)`
`therefore"internal energy du"=mC_(v)(T_(2)-T_(1))=5xx6(20-10)`
`300"cal" `
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-KINETIC THEORY OF GASES ANDRADIATION-Exercise 1
  1. Which one of the following gases possesses the largest internal energy

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  2. Value of two principal specific heats of a gas ("in cal mol" K)^(-1) d...

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  3. Caluculate Change in internal energy when 5 moles of hydrogen is heate...

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  4. Each molecule of a gas has F degrees of freedom . The ratio (C(p))/(C(...

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  5. The adiabatic elasticity of hydrogen gas (gamma=1.4) at NTP

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  6. if quantity of heat 1163.4 J supplied to one mole of nitrogen gas , at...

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  7. using euipartion of energy, the specific heat (in Jkg^(-1)K^(-1))of a...

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  8. For a gas if ratio of specific heats at constant pressure and volume i...

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  9. One mole of an ideal monoatomic gas requires 207 J heat to raise the t...

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  10. Which of the given substances A B and C have more specific heat ?

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  11. For the same rise in temperature of one mole of gas at constant volume...

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  12. A gas expands with temperature according to the relation V=KT^(2/3).Wo...

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  13. A system is taken through a cyclic proceses represented by a circle as...

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  14. C(v)" for "O(2)" is " (5)/(2)R with increase in tempeature it becomes ...

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  15. A given mass of a gas is compressed isothermally until its pressure is...

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  16. 310 J of heat is required to rise the temperature of 2 moles of an ide...

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  17. Two cylinders A and B fitted with pistons contain equal amounts of an ...

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  18. The ratio of the specific heats C(p)/C(v)=gamma in terms of degrees of...

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  19. During an adiabatic process , the pressure p of a fixed mass of an ide...

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  20. A thermodynamic system is taken from state A to state B along ABC and ...

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