Chemistry questions
29404 published questions with worked solutions.
- In which state, the matter has highest entropy?
- Which one of the following process is non-spontaneous?
- The INCORRECT option in the following table is __________ Table columns: H ; S ; Nature of reaction
- For melting of 3 moles of water at 0 ^ C , the G^ is __________
- The positive value of S indicates that __________
- In which of the following processes does the entropy decrease?
- Highest entropy is in __________
- The heat change H for the reaction 2CO + O_2 2CO_2 ; H = -135 kcal is called __________
- The enthalpy of neutralization of which of the following acids and bases is nearly -13.6 kcal?
- A solution of 200 mL of 1M KOH is added to 200 mL of 1M HCl and the mixture is well shaken. The rise in temperature T_1 is noted....
- The exothermic reaction among the following is __________
- Mixing of non-reacting gases is generally accompanied by __________
- Which of the following is a state function as well as intensive property?
- A system is said to be in thermodynamic equilibrium when, __________
- When the composition of the system does NOT change with time, then the system is in __________ equilibrium
- Equation of gaseous state is given by relation, _________
- If one mole of a gas occupying y L volume is expanded against a constant external pressure of one atmosphere to a volume of x L,...
- 3 moles of an ideal gas is compressed from 30 dm^3 to 20 dm^3 against a constant pressure of 3.039 10^ 5 N ,m^ -2 . The work done...
- Two moles of an ideal gas expand spontaneously into a vacuum. The work done is ________
- The work done in ergs for a reversible expansion of n mole of an ideal gas from a volume of 20 L to 40 L at 25 °C is ________