Q. During combustion, heat energy is

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Q. The energy can neither be created nor destroyed but can be changed from one form to the other is

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Q. Law of conservation of energy is called same as

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Q. When the temperature of the system remains constant, the graph shows

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Q. The slope of the cooling curve at any point is

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Q. The amount of energy required to note the phase change is

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Q. The latent heat of any substance is given by the formula

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Q. When energy is used to bring the molecules closer, the energy decreases

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Q. The concept of latent heat was introduced by

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Q. The unit of specific latent heat is

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Q. The curves which show the temperature when a substance is cooled down is called

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Q. The graph of cooling curve consists of two parts

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Q. Pouring temperature of the graph is the

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Q. All these molecules have dipole-dipole forces, except

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Q. Greater the strength of dipole-dipole forces, the values of thermodynamic parameters are

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Q. The attractive forces between oppositely charged ions are

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Q. Dipole-dipole forces are as effective as covalent bond

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Q. Dipole-dipole forces operate reasonably in

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Q. The change in enthalpy at constant pressure is equal to

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Q. Total heat content of a system is called

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