Chemistry questions
29404 published questions with worked solutions.
- Heat of combustion of methane and ethane are -101.7 kcal and -341.2 kcal. Then
- The heat changes for the reaction : CO(g)+ 12O_2(g) CO_2(g) is known as
- The heats of combustion of graphite and diamond are 393.5 and 395.4 kJ/mole respectively. The heat of transformation of graphite...
- The heat changes for the reaction : H_2O(s) H_2O( l ) is known as
- Heat of combustion is the
- The H for combustion of a substance
- A solution of 500 ml of 2 M KOH is added to 500 ml of 2 M HCl and the mixture is well shaken. The rise in temperature T_1 is...
- Energy required to convert 1 mole of water to steam at 373 K and 1 atm is called the heat of
- On burning hydrogen in atmosphere of chlorine, 1.65 gm of HCl was obtained and 1 kcal of heat was liberated. The heat of...
- The heat of neutralization of a strong acid by a strong base is -57.3 kJ . How much heat is liberated in neutralization of 0.2 M...
- Equal volumes of molar KOH and are neutralized by dilute H_2SO_4 solution and x kcal and y kcals of heat are liberated...
- If H^++OH^-=H_2O +57.2 kJ , then H for complete neutralization of 10 lit. of 0.1 M H_2SO_4 solution will be
- HA+OH^- H_2O+A^- +q_1 kJ H^++OH^- H_2O +q_2 kJ The enthalpy of dissociation of HA is
- A solution of 200 ml of 1 M KOH is added to 200 ml of 1 M HCl and the mixture is shaken. The rise in temperature T_1 is noted....
- The decreasing order of calorific value is
- The heat of combustion of yellow P and red P are -9.91 kJ ,mol^ -1 and -8.78 kJ ,mol^ -1 respectively. The heat of transition of...
- Under the same conditions how many ml of 1 M KOH and 0.5 M H_2SO_4 solutions respectively when mixed for a total volume of 100 ml...
- Heat of neutralization of HCl and CH_3COOH is -67.32 and -66.23 kJ per gram equivalent should be
- The heats of combustion of rhombic and monoclinic sulphur are respectively 70960 and 71030 calories, what will be the heat of...
- The enthalpy of neutralization of NaOH with HCl is -13.7 K cal with CH_3COOH , it is -13.2 K cal. These happens because