Heat Capacity...

Heat Capacity at Constant Pressure

Trending Questions

Q. Calculate the standard heat of formation of carbon-di-sulphide(l). Given that the standard heats of combustion of carbon(s), sulphur(s) & carbon disulphide(l) are -393.3, -293.7 & -1108.76

k J m o l^{- 1}

respectively.

128.02 kJ
-228.02 kJ
228.02 kJ
-128.02 kJ

View Solution

Q. For a gas having molar mass

M

, specific heat at constant pressure is given by:

$\frac{γ R}{M (γ - 1)}$
$\frac{γ}{R M}$
$\frac{M}{R (γ - 1)}$
$\frac{γ R M}{(γ + 1)}$

View Solution

The reaction N $_{2}$ O $_{4}$ (g) $⇌$ 2NO $_{2}$ (g) is
carried out at 298 K and 20 bar. Five moles of each of N $_{2}$ O $_{4}$ and
NO $_{2}$ , are taken initially. Given: $Δ$ $_{f}$ G $^{\circ}$
(N $_{2}$ O $_{4}$ ) = 100 kJ mol $^{- 1}$ and $Δ$ $_{f}$ G $^{\circ}$
(NO $_{2}$ ) = 50 kJ mol $^{- 1}$ . The reaction proceeds at an initial pressure
of 20 bar. Determine the direction in which the reaction proceeds to achieve
equilibrium. Also determine the amounts of N $_{2}$ O $_{4}$ and NO $_{2}$ when the reaction attains equilibrium.

= 8.333, = 1.667
= 1.667, = 3.333
= 3.333, = 1.667
= 6.667, = 1.667

View Solution

Q. A heat engine is operating between

500 K

300 K

and it absorbs

10 k c a l

of heat from

500 K

reservoir reversibly per cycle. Calculate the work done (in kcal) per cycle.

View Solution

Q. A certain gas is expanded from (1 L, 10 atm) to (4 L, 5 atm) against a constant external pressure of 1 atm. If the initial temperature of the gas is 300 K and the heat capacity for the process is