Home
Class 12
CHEMISTRY
DeltafU^@of formation of CH4(g) at certa...

`Delta_fU^@`of formation of `CH_4(g)` at certain temperature is `-393 kJ mol^-1`. The value of `Delta_fH^@` is

A

zero

B

`ltDelta_fU^@`

C

`gtDelta_fU^@`

D

equal to `Delta_fU^@`

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

DeltaU of combustion of methane is -X kJ mol^-1 . The value of DeltaH is

The Delta S for the vaporization of 1 mol of water is 88.3 J/mol K. The value of Delta S for the condensation of 1 mol of vapour will be ________ .

1 mol of CH_(4) contains_______

The enthalpies of formation of N_2O and NO at 298 K are 82 and 90 kJ mol^(-1) . The enthalpy of the reaction : 2N_2O_((g)) + 1/2 O_(2(g))rarr 4NO_((g)) is

The enthalpy of formation of ammonia gas at 298 K is -46.11 kJ mol^(-1) . The equation to which this value relates is

The heat of formation of methane gas at 298 K is -74.894 kj when the measurements are made at constant pressure. What will be the heat of formation of CH_4 at the same temperature but at constant volume? (R =8.314JK^(-1) mol^(-1))

If the standard enthalpy of formation of methanol is -238.9 kJ mol^(-1) then entropy change of the surroundings will be.

Estimate the standard enthalpy of combustion of acetylene from the following data: Delta_fH^@ (CO_2) =-393.5 kj mol^(-1) Delta_fH^@ (H_2O) =-285.8 kj mol^(-1) Delta_fH^@ (C_2H_2) = + 227.3 kj mol^(-1)