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

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

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Q. The oxidation of food in our body keeps us

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

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Q. The endothermic chemical reaction absorbs energy from

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

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

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

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Q. The value of lattice energy is affected by

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

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

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

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

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

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

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Q. To increase the temperature of 1 g of water by 1 °C, it requires energy equal to

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Q. The ideal temperature for calorimetry is

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Q. Polystyrene drinking cup can act like the apparatus of

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Q. The technique which we use to measure enthalpy change of reactions is known as

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Q. Boiling point becomes higher due to increase in the

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