Question
(A) Efficiency of a reversible engine is 100% (maximum) when the temperature of sink is - 273°C.
(R) Efficiency of engine, 
- If both (A) and (R) are correct and (R) is the correct explanation for (A)
- Ifboth (A) and (R) are correct but (R) is not the correct explanation for (A)
- If (A) is correct but (R) is incorrect
- If (A) is incorrect but (R) is correct
The correct answer is: If both (A) and (R) are correct and (R) is the correct explanation for (A)
Related Questions to study
The heat liberated when 1.89 g of benzoic acid is burnt in a bomb calorimeter at 25°C increases the temperature of 18.94 kg of water by 0.632°CIf the specific 'heat of water at25°e is 0.998 calg-1deg-I ,the value of heat of combustion of benzoic acid is:
The heat liberated when 1.89 g of benzoic acid is burnt in a bomb calorimeter at 25°C increases the temperature of 18.94 kg of water by 0.632°CIf the specific 'heat of water at25°e is 0.998 calg-1deg-I ,the value of heat of combustion of benzoic acid is:
The enthalpy of solution of BaCl2 (s) and BaC12 2HzCXs) are -20.6 and 8.8 kJ mol-I, respectively. The enthalpy change for the reaction is:
The enthalpy of solution of BaCl2 (s) and BaC12 2HzCXs) are -20.6 and 8.8 kJ mol-I, respectively. The enthalpy change for the reaction is:
Which one of the following statements is false?
State functions depend on a substance's state, such as its amount, type, temperature, or pressure. In actuality, state functions are independent of how the state was created or reached.
State function refers to a set of characteristics that depend only on the initial and final states and not intermediate steps in a reaction or a path. For example, Gibb's free energy.
Heat and work are not functions of the state. Work cannot be the state function because it is proportional to an object's distance moved, determined by the path taken from the initial to the final state. So heat isn't a state function if work isn't.
Which one of the following statements is false?
State functions depend on a substance's state, such as its amount, type, temperature, or pressure. In actuality, state functions are independent of how the state was created or reached.
State function refers to a set of characteristics that depend only on the initial and final states and not intermediate steps in a reaction or a path. For example, Gibb's free energy.
Heat and work are not functions of the state. Work cannot be the state function because it is proportional to an object's distance moved, determined by the path taken from the initial to the final state. So heat isn't a state function if work isn't.
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