Q. The symbol for enthalpy is

View solution

Q. Kilojoules per mole are the unit of

View solution

Q. The change in the energy between a chemical reaction and the surroundings at constant temperature is called

View solution

Q. Fireworks release energy in the form of

View solution

Q. The cooling pack which treat a sports injury is kneaded with water and

View solution

Q. Meals can be heated up when camping by the help of

View solution

Q. Whenever there is an occurrence of chemical reaction there lies a change in

View solution

Q. The oxidation of food in our body keeps us

View solution

Q. In an equation, the positive sign (+ΔH) indicates that the reaction is

View solution

Q. The endothermic chemical reaction absorbs energy from

View solution

Q. Anhydrous calcium chloride (CaCl₂) and water (H₂O) react together to heat the food by

View solution

Q. The chemical reactions which emit energy to surroundings are called

View solution

Q. Lithium Fluoride's lattice energy to Magnesium oxide is

View solution

Q. The value of lattice energy is affected by

View solution

Q. Lattice energy becomes more exothermic if the size of ion is

View solution

Q. With the increase in the size of ion, will make lattice energy

View solution

Q. Weak electrostatic forces of attraction in ionic lattice is due to

View solution

Q. The French scientists Lavoisier and Laplace first detected the amount of heat by using

View solution

Q. For experiments to be carried out in a calorimeter, one should have known the amounts of

View solution

Q. The energy which is required to elevate the temperature of 1g of liquid by 1 °C is called

View solution