Home
Class 12
PHYSICS
When water is heated from 0^(@)C to 4^(@...

When water is heated from `0^(@)C` to `4^(@)C` and `C_(P)` and `C_(V)` are its specific heats at constant pressure and constant volume respectively , then :-

A

`C_(P)gt C_(V)`

B

`C_(P)lt C_(V)`

C

`C_(P) = C_(V)`

D

`C_(P) - C_(V) = R`

Text Solution

Verified by Experts

The correct Answer is:
B
When water is heated from `0^(@)C` to `4^(@)C` , its volume decreases.
` therefore P DeltaV` is negative
Hence `C_(P) - C_(V) lt 0 implies C_(P) lt C_(V)`
Promotional Banner

Topper's Solved these Questions

  • GEOMETRICAL OPTICS

    ALLEN |Exercise EXERCISE -02|82 Videos

  • GEOMETRICAL OPTICS

    ALLEN |Exercise EXERCISE -03|11 Videos

  • GEOMETRICAL OPTICS

    ALLEN |Exercise SOME WORKED OUT EXAMPLES|84 Videos

  • CURRENT ELECTRICITY

    ALLEN |Exercise EX.II|66 Videos

  • GRAVITATION

    ALLEN |Exercise EXERCISE 4|9 Videos

Similar Questions

Explore conceptually related problems

Write definitions of molar specific heat at constant pressure and constant volume.

C_(p) and C_(v) denote the molar specific heat capacities of a gas at constant pressure and volume respectively. Then :

If C_(p) and C_(v) denoted the specific heats of unit mass of nitrogen at constant pressure and volume respectively, then

An ideal gas under goes a quasi static, reversible process in which its molar heat capacity C remains constant. If during this process the relation of pressure P and volume V is given by PV^n=constant , then n is given by (Here C_P and C_V are molar specific heat at constant pressure and constant volume, respectively):

Graph of specific heat at constant volume for a monoatomic gas is ____

The molar specific heat at constant pressure of an ideal gas is 7/2R . The ratio of specific heat at constant pressure to that at constant volume is ……….

One mole of an ideal gas at an initial temperature of TK does 6R Joule of work adiabatically. If the ratio of specific heat of this gas at constant pressure and at constant volume is 5/3 , the final temperature of gas will be ____

One mole of an ideal gas at an initial temperature of TK does 6R joule of work adiabatically. If the ratio of specific heats of this gas at constant pressure and at constant volume is 5//3 , the final temperature of the gas will be

When a gas is heated in a vessel of constant volume , the pressure increases because

Obtain the relation between specific heat capacity at constant pressure and specific heat capacity at constant volume for an ideal gas.

ALLEN -GEOMETRICAL OPTICS-EXERCISE -01
  1. Air is filled at 60^(@)C in a vessel of open mouth. The vessle is heat...

    Text Solution

    |

  2. One mole of an ideal gas undergoes a process p=(p(0))/(1+((V(0))/(V))...

    Text Solution

    |

  3. Two identical glass bulbs are interconnected by a thin glass tube. A g...

    Text Solution

    |

  4. As shown , a piston chamber pf cross section area A is filled with ide...

    Text Solution

    |

  5. A gas has volume V and pressure p. The total translational kinetic ene...

    Text Solution

    |

  6. A mixture of n(1) moles of monoatomic gas and n(2) moles of diatomic g...

    Text Solution

    |

  7. Four containers are filled with monoatomic ideal gases. For each conta...

    Text Solution

    |

  8. 10^(23) molecules of a gas strike a target of area 1 m^(2) at angle 45...

    Text Solution

    |

  9. From the following V-T diagram we can conclude:-

    Text Solution

    |

  10. The density in grams per litre of ethylene (C(2)H(4)) at STP is :-

    Text Solution

    |

  11. A gas is expanded from volume V(0) = 2V(0) under three different proce...

    Text Solution

    |

  12. Some of the thermodynamic parameters are state variables while some ar...

    Text Solution

    |

  13. For an ideal gas PT^(11) = constant then volume expansion coefficient ...

    Text Solution

    |

  14. The internal energy of a gas is given by U= 5 + 2PV. It expands from V...

    Text Solution

    |

  15. When water is heated from 0^(@)C to 4^(@)C and C(P) and C(V) are its s...

    Text Solution

    |

  16. The molar specific heat of the process V alpha T^(4) for CH(4) gas at...

    Text Solution

    |

  17. 5"n", n and 5"n" moles of a monoatomic, diatomic and non-linear polyat...

    Text Solution

    |

  18. The relation between U, p and V for an ideal gas in an adiabatic proce...

    Text Solution

    |

  19. What would be the efficiency of the heat engine diagramed as shown bel...

    Text Solution

    |

  20. An ideal Carnot heat engine with an efficiency of 30%. It absorbs heat...

    Text Solution

    |