Home
Class 11
CHEMISTRY
A system absorbs 300 cal. Of heat, its v...

A system absorbs 300 cal. Of heat, its volume doubles and temperature rises from 273 to 298 K, the work done on the surrounding is 200 cal `DeltaE`, for the above reaction is

A

`100 cal`

B

`500 cal`

C

`-500 cal`

D

`-100 cal`

Text Solution

Verified by Experts

The correct Answer is:
1

`DeltaE=q+w=300+(-200)=100cal.`
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMIC & THERMOCHEMISTRY

    RESONANCE ENGLISH|Exercise INORGANIC CHEMISTRY(P-Block Elements)|26 Videos
  • STRUCTURAL IDENTIFICATION & PRACTICAL ORGANIC CHEMISTRY

    RESONANCE ENGLISH|Exercise Section -B|18 Videos

Similar Questions

Explore conceptually related problems

A system absorbs 300cal of heat , its volume doubles and temperature rises from 273 to 298 k , the work done on the surrounding is 200 cal . Delta E for the above reaction is :

A system absorbs 300 cal of heat. The work done by the system is 200 cal. Delta U for the above change is

A system absorbs 10kJ of heat at constant volume and its temperature rises from 27^(0)C " to " 37^(0)C . The ΔE of reaction is

One mole of a gas absorbs 200 J of heat at constant volume. Its temperature rises from 298 K to 308 K. The change in internal energy is :-

If one mole of gas doubles its volume at temperature T isothermally then work done by the gas is

When the pressure of 5 L of N_(2) is double and its temperature is raised from 300 K to 600 K, the final volume of the gas would be

A refrigerator absorbs 2000 cal of heat from ice trays. If the coefficient of performance is 4, then work done by the motor is

0.562g of graphite kept in a bomb calorimeter in excess of oxygen at 298K and 1 atmospheric pressure was burnt according to the equation, C_(Graph ite)+O_(2(g))rarr CO_(2(g)) durgin the reaction, temperature rises from 298K o 298.89K . If the heat capacity of the calorimeter and its contents is 20.7 kJ//K , what is the enthalpy change for the above reaction at 298K and 1 atm ?

A Carnot engine takes 9000 cal of heat from a reservoir at 627^@ C and gives it to a sink at 27^@C . The work done by the angine is

What is DeltaE for system that does 500 cal of work on surrounding and 300 cal of heat is absorbed by the system ?

RESONANCE ENGLISH-THERMODYNAMIC & THERMOCHEMISTRY-INORGANIC CHEMISTRY(P-Block Elements)
  1. A system absorbs 300 cal. Of heat, its volume doubles and temperature ...

    Text Solution

    |

  2. Heat of atomisation of NH3 and N2H4 are x kcal mol^(-1) respectively....

    Text Solution

    |

  3. For the reaction at 25^(@)C, C(2)O(4)(l) rarr 2XO(2)(g) Delta H =2.1...

    Text Solution

    |

  4. If one mole of an ideal gas (C(p,m)=(5)/(2)R) is expanded isothermally...

    Text Solution

    |

  5. P-V plts for the gases ( assuming ideal behaviour and similar conditio...

    Text Solution

    |

  6. An ideal gas at initial pressur eP(1) and volume V(1) undergoes rever...

    Text Solution

    |

  7. When a system is taken from state B to state A along path BDA as shown...

    Text Solution

    |

  8. In a system, a piston caused an external pressure of 1.25 bar giving a...

    Text Solution

    |

  9. If 1 mole of an ideal gas expands isothermally at 37^(@)C from 15 litr...

    Text Solution

    |

  10. Two moles of an ideal gas undergo the following process : (a) a reve...

    Text Solution

    |

  11. What are the signs of the entropy change ( + or -) in the following: ...

    Text Solution

    |

  12. If HA+NaOH rarr NaA+H(2)O" "DeltaH=-12kcal and HB+NaOH rarr NaB+...

    Text Solution

    |

  13. A reaction has DeltaH=-33 kJ and DeltaS=-58 J//K. This reaction would ...

    Text Solution

    |

  14. In the isothermal reversible compression of 52.0m mol of a perfect gas...

    Text Solution

    |

  15. A child bought a balloon which became very small in size the next day....

    Text Solution

    |

  16. It the following processes, identify the irreversible process :

    Text Solution

    |

  17. If bond energy of H(2),F(2) and HF are in the ratio 2:1:3 and DeltaH(a...

    Text Solution

    |

  18. One mole of a non-ideal gas undergoes a change of state from (1.0 atm,...

    Text Solution

    |

  19. Calculate the final pressure of a sample of carbon dioxide that expand...

    Text Solution

    |

  20. The heat evolved from the combustion of carbon is used to heat water. ...

    Text Solution

    |

  21. The equilibrium constant for A(g)+B(2)(g) hArr AB(2)(g)" "k(p)=1...

    Text Solution

    |