Chemical Engineering:: Stoichiometry

1 kgf/cm2 is not equal to

A. 1 torr
B. l bar
C 10000 mm wc
D. 100 KPa = 100 N/m2

Pick out the wrong statement.

A. Heat capacity of a diatomic gas is higher than that of a monoatomic gas.
B. Equal volumes of Argon and Krypton contain equal number of atoms.
C Total number of molecules contained in 22.4 litres of hydrogen at NTP is 6.023 x 1023.
D. The binary mixture of a particular com-positidn in both vapor and liquid state is known as an azeotropic mixture

On addition of 1 c.c. of dilute hydrochloric acid (1% concentration) to 80 c.c. of a buffer solution of pH = 4, the pH of the solution becomes

A. 1
B. 8
C 4
D. 2

The weight fraction of methanol in an aqueous solution is 0.64. The mole fraction of methanol XM satisfies

A. XM < 0.5
B. XM = 0.5
C 0.5 < XM < 0.64
D. XM ? 0.64

Pick out the wrong statement.

A. The effect of pressure on heat capacity of gases at pressure above one atmosphere and above the critical temperature is negligible.
B. The value of Cp of gases increases with increase in pressure, above atmospheric pressure.
C The value of Cp at critical temperature and pressure reaches infinity.
D. all (a), (b), and (c).

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