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))`

The specific heat of gas under constant pressure as compared to specific heat under constant volume at the same temperature 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

294 joules of heat is requied to rise the temperature of 2 mole of an ideal gas at constant pressure from 30^(@)C to 35^(@)C . The amount of heat required to rise the temperature of the same gas through the same range of temperature at constant volume (R=8.3 "Joules/mole"-K) is

Calculate the difference in heat of reaction at constant pressure and at constant volume at 300K. C_(s) + 2H_(2(g) rarr CH_(4(g) (R = 8.314 J K^(-1) mol^(-1)

(Delta H - Delta U) for the formation of carbon monoxide (CO) from its elements at 298K is (R = 8.314 K^(-1)mol^(-1))

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

If the heat of combustion of carbon monoxide at constant volume and at 17^@ C is -283.3 kJ, then its heat of combustion at constant pressure is _________ . (R = 8.314 J K^-1 mol^-1 )

One mole of an ideal gas requires 207 J heat to raise the temperature by 10 K, when heated at constant pressure. If the same gas is heated at constant volume to raise the temperature by 10 K, then heat required is [given gas constant. R = 8.31/(mol -K)]

One mole of an ideal gas requires 135 J of heat to raise its temperature by 15 ^@ K when heated at constant pressure. If the same gas is heated at constant volume to raise the temperature by the same, then the heat required will be (R = 8.3J /mole ^@K)

743 J of heat energy is needed to raise the temperature of 5 moles of an ideal gas by 2 K at constant pressure. How much heat energy is needed to raise the temperature of the same mass of the gas by 2 K at constant volume ?