XI Chemistry Mcqs
Energetics of Chemical Reaction – Chapter # 05 – Test 02
- Question 1 of 101. The heat content of a system is called:
Right Answer! Good
Wrong Answer Correct Answer is : Enthalpy
- Question 2 of 102. First law of thermodynamics is mathematically represented as:
Right Answer! Good
Wrong Answer Correct Answer is : E qW
- Question 3 of 103. Sign of H represents:
Right Answer! Good
Wrong Answer Correct Answer is : Change in enthalpy
- Question 4 of 104. Heat of change in a chemical reaction is the same whether it takes place in one or indirectly in several steps. This represents:
Right Answer! Good
Wrong Answer Correct Answer is : Hess's Law
- Question 5 of 105. Which of the following statements does not correspond to the First law of Thermodynamic:
Right Answer! Good
Wrong Answer Correct Answer is : All the above statements are incorrect
- Question 6 of 106. Which of the following statements is not correct about Hess's Law of constant heat summation:
Right Answer! Good
Wrong Answer Correct Answer is : It tells whether the reaction is exothermic or endothermic
- Question 7 of 107. Evaporation of water is:
Right Answer! Good
Wrong Answer Correct Answer is : An endothermic reaction
- Question 8 of 108. The equation qp H represents:
Right Answer! Good
Wrong Answer Correct Answer is : Heat changes at constant pressure
- Question 9 of 109. Hess's law deals with:
Right Answer! Good
Wrong Answer Correct Answer is : Calculating heat of reaction
- Question 10 of 1010. Since the enthalpy of elements in their natural state is zero the heat of formation Hr of compounds:
Right Answer! Good
Wrong Answer Correct Answer is : May be negative or positive