Q. The heat capacity is related to the temperature by the formula

View solution

Q. The enthalpy of neutralization of NaOH by HCl is

View solution

Q. The amount of heat absorbed or evolved when one mole of the compound is formed from its elements is

View solution

Q. In exothermic reaction, enthalpy of reactants is

View solution

Q. The heat change during any physical or chemical change taking place at constant pressure is called

View solution

Q. The units of heat capacity are

View solution

Q. In endothermic reaction, the enthalpy change of products is

View solution

Q. The apparatus used to measure the enthalpy of combustion of a substance is

View solution

Q. Amount of heat absorbed in melting one mole of solid is

View solution

Q. During melting, there is change in intermolecular distances and potential energy of atom, ion and molecules

View solution

Q. The quantity of heat q is evolved or absorbed during the reaction is given by

View solution

Q. The amount of heat evolved when one mole of a substance is completely burnt in oxygen is

View solution

Q. Hf of ice is

View solution

Q. In halogens, iodine has biggest size and

View solution

Q. The amount of heat absorbed when one mole of gaseous atoms are formed from the element is

View solution

Q. Molar heat of sublimation of iodine is

View solution

Q. The quantity of heat required to change the temperature by 1 Kelvin is called

View solution

Q. When heat is absorbed by the system, change in entropy is

View solution

Q. When heat flows from one system to another, the net change in entropy is

View solution

Q. The efficiency of an electric generator is about

View solution