Home
Class 12
CHEMISTRY
The heat liberated when 1.89 g of benzoi...

The heat liberated when 1.89 g of benzoic acid is burnt in a bomb calorimeter at `25^(@)C` and it increases the temperature of 18.94 kg of water by `0.632^(@)C`. If the specific heat of water at `25^(@)C` is 0.998 cal/g-deg, the value of the heat of combustion of benzoic acid is

A

881.1 kcal

B

771.4 kcal

C

921. 1 kcal

D

871.2 kcal

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS & THERMOCHEMISTRY

    VMC MODULES ENGLISH|Exercise Efficient|48 Videos

  • THERMODYNAMICS

    VMC MODULES ENGLISH|Exercise JEE ADVANCED (ARCHIVE)|44 Videos

Similar Questions

Explore conceptually related problems

The heat liberated when 1.89 g of benzoic acid is burnt in a bomb calorimeter at 25^(@)C increases the temperture of 18.94 kg of water by 0.632 ^(@)C . If the specific heat of water at 25^(@)C is 0.998 cal//g "deg" , the value of the heat of combustion of benzoic acid is

Which one of the following would raise the temperature of 20 g of water at 30^(@)C most when mixed with? (Specific heat of water is 1cal//g-.^(@)C )

When 1.0 g of oxalic acid (H_(2)C_(2)O_(4)) is burnt in a bomb calorimeter whose capacity is 8.75 KJ/K, the temperature increases by 0.312K, the enthalpy of combustion of oxalic acid at 27^(@)C is :

0.5 g of benzoic acid was subjected to combustion in a bomb calorimeter at 15^(@)C when the temperature of the calorimeter system (including water) was found to rise by 0.55^(@)C . Calculate the heat of combustion of benzoic acid (i) at constant volume and (ii) at constant pressure. the thermal capacity of the calorimeter including water was found to be 23.85 kJ.

The water equivalent of a copper calorimeter is 4.5g. If the specific heat of copper is 0.09 cal g^(-1).^(@)C^(-1) . Then

Calculate the amount of heat required to raise the temperature of 5 g of iron from 25^(@)C "to" 75^(@)C . The specific heat capacity of iron is 0.45 J/g. C

120 g of ice at 0^(@)C is mixed with 100 g of water at 80^(@)C . Latent heat of fusion is 80 cal/g and specific heat of water is 1 cal/ g-.^(@)C . The final temperature of the mixture is

What will be the final temperature when 150 g of ice at 0^@C is mixed with 300 g of water at 50^@C . Specific heat of water =1 cal//g//^@C . Latent heat of fusion of ice =80 cal//g .

When 0.2 g of butanol was burnt in a suitable apparatus the heat evolved was sufficient to rise the temperature 200 g of water by 5^(@)C . The heat of combustion of butanol in kcal/mole will be

Stearic acid [CH_(3)(CH_(2))_(16)CO_(2)H] is a fatty acid the part of fat that stores most of the energy .1.0 g of Stearic acid was burnt in a bomb calorimeter . The bomb had capacity of 652 J//^(@)C . If the temperature of 500 g water rose from 25.0 to 39.3^(@)C how much heat is released when the stearic acid was burned? ["Given "C_(p)(H_(2)O)=4.18J//g^(@)c]

VMC MODULES ENGLISH-THERMODYNAMICS & THERMOCHEMISTRY-Impeccable
  1. If 1 mole of an ideal gas expands isothermally at 37^(@)C from 15 litr...

    Text Solution

    |

  2. The pressure of a gas is 100 k Pa. if it is compressed from 1 m^(3) t...

    Text Solution

    |

  3. The heat liberated when 1.89 g of benzoic acid is burnt in a bomb calo...

    Text Solution

    |

  4. The heat of combustion of liquid ethanol is -327.0 kcal calculate the ...

    Text Solution

    |

  5. The amount of heat evolved when 500 cm^(3) 0.1 M HCl is mixed with 200...

    Text Solution

    |

  6. The heats of neutralisation of four acids a, b, c and d when neutralis...

    Text Solution

    |

  7. According to the second law of thermodynamics, a process (reaction) is...

    Text Solution

    |

  8. Calculate the free energy change for the following reaction at 300 K. ...

    Text Solution

    |

  9. Which one of the following is correct?

    Text Solution

    |

  10. Which of the following is correct option for free expansion of an idea...

    Text Solution

    |

  11. Enthalpy change for the reaction, 4H(g) to 2H2(g) is -869.6 kJ Th...

    Text Solution

    |

  12. If the enthalpy change for the transition of liquid water to steam is ...

    Text Solution

    |

  13. Based on the first law of thermodynamics, which one of the following i...

    Text Solution

    |

  14. The enthalpy of solution of sodium chloride is 4 kJ mol^(-1) and its e...

    Text Solution

    |

  15. Which reaction, with the following values of Delta H, Delta S, at 400 ...

    Text Solution

    |

  16. Enthalpy of vapourization of benzene is +35.3 kJ mol^(-1) at its boili...

    Text Solution

    |

  17. For the reversible reaction. A(s)+B(g) Leftrightarrow C(g)+D(g), tri...

    Text Solution

    |

  18. A reaction is spontaneous at low temperature but non- spontaneous at h...

    Text Solution

    |

  19. A reaction having equal energies of activation for forward and reverse...

    Text Solution

    |

  20. Which of the following statements is correct for the spontaneous adsor...

    Text Solution

    |