Treatment of sodium phenoxide with `CO_2` at 400 K under a pressure of 4-7 atm followed by acidification gives salicylic acid /salicyaldehyde.

Calculate the volume occupied by 4.4 g of CO_2 at 27^@C and under a pressure of 0.5 atmosphere.

With what minimum pressure (in kPa), a given volume of an ideal gas (C_(p,m)=7//2R) originally at 400 K and 100 kPa pressure can be compressed irreversibly adiabatically in order to raise its temperature to 600 K :

At room temperature following traction goes to completion 2AB(g)+B_(2)(g)rarr2AB_(2)(s) AB_(2) is solid with negligble vapour pressure below 0^(@)C . At 300 K, the AB in the smaller flask exerts a pressure of 3 atm and in the larger flask B_(2) exerts a pressure of 1 atm at 400 K when they are separated out by a close valve, The gases are mixed by opening the stop cock and after the end of the reaction the flask are cooled to 250 K The final pressure is :

Draw the structure of the following: H_4P_2O_7 (Pyrophosphoric acid)

The decomposition of dimethyl ether leads to the formation of CH_4, H_2 and CO and the reaction rate is given by Rate = k [CH_3OCH_3]^(3/2) . The rate of reaction is followed by increase in pressure in a closed vessel, so the rate can also be expressed in terms of the partial pressure of dimethyl ether, i.e., Rate= k (P_(CH_3OCH_3 )^(3/2) If the pressure is measured in bar and time in minutes, then what are the units of rate and rate constants?

A solution of glucose has been prepared at 298K dissolving 7.2 g of glucose in 100 g of water. k_f water is 1.86Km^-1 and vapour pressure of water at 298K is 0.024 atm. The amount of the sodium chloride that should be dissolved in the same amount of water to get the same freezing point will be

The decomposition of Cl_2O_7 at 400 K in the gas phase to Cl_2 and O_2 is a first order reaction. After 55 seconds at 400 K, the pressure of Cl_2O_7 falls from 0.062 to 0.044 atm Calculate the pressure of after 100 s of decomposition at this temperature.

The decomposition of Cl_2O_7 at 400 K in the gas phase to Cl_2 and O_2 is a first order reaction. After 55 seconds at 400 K, the pressure of Cl_2O_7 falls from 0.062 to 0.044 atm. Calculate the rate constant.

Answer the following questions based on the P-T phase diagram of CO_2 CO_2 at 1 atm pressure and temperature 60^@C is compressed isothermally. Does it go through a liquid phase?