126. Variation of vapor pressure with temperature can be calculated using Clausius-Clapeyron equation, which assumes that the
127. Heat of neutralisation of HCl and NaOH is - 57.46 kJ/Kg mole. The heat of ionisation of water will be __________ kJ/Kg mole.
128. A vessel of volume 1000 m3 contains air which is saturated with water vapour. The total pressure and temperature are 100 kPa and 20°C respectively. Assuming that the vapour pressure of water at 20°C is 2.34 kPa, the amount of water vapour (in kg) in the vessel is approximately
129. Othmer chart is useful in estimating the heat of
130. The vapor pressure of water at 100°C is
131. With rise in temperature, the heat capacity of a substance
132. 1m3 is approximately equal to
133. 1 bar is almost equal to __________ atmosphere.
134. Which of the following is the Claussius-Clayperon equation ?
135. Kopp's rule is useful for the determination of
136. Pick out the wrong unit conversion.
137. Viscosity of 1 centipoise is equal to 1 centis-toke in case of
138. In a binary liquid system, the composition expressed as __________ is independent of the temperature & pressure.
139. A sugar solution containing __________ percent sugar is equivalent to 1 Brix.
140. __________ equation gives the effect of temperature on heat of reaction.
141. Which of the following has the smallest least effect on the solubility of a solute into the solvent ?
142. 1 Kcal/kg. °C is equivalent to __________ BTU/lb. °F.
143. One 'Therm' is equivalent to
144. A gas at 0°C was subjected to constant pressure cooling until its volume became half the original volume. The temperature of the gas at this stage will be
145. A car tyre of volume 0.057 m3 is inflated to 300 kPa at 300 K. After the car is driven for 10 hours, the pressure in the tyre increases to 330 kPa. Assume air is an ideal gas and Cv for air is 21 J/mole.K. The change in the internal energy of air in the tyre in J/mole is
146. According to the kinetic theory, the thermal conductivity of a monoatomic gas is proportional to
147. Volume occupied by one gm mole of a gas at S.T.P. is
148. Vapor pressure of a solution is proportional to(where, Sv and St are mole fraction of solvent and solute respectively).
149. In which of the following case of mixing of a strong acid with strong base (each of 1N concentration), temperature increase will be the highest ?
150. The quantity of heat required to evaporate 1 kg of a saturated liquid is called