EASY
Chemistry
IMPORTANT
Earn 100

The correct order of enthalpy of vaporization of noble gases is

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Important Questions on Thermodynamics

EASY
Chemistry
IMPORTANT

You are given the following two reactions:

i CH4 g+2O2 gCO2 g +2H2O l; H=-890.4 kJ

ii 2H2O g 2H2 g +O2 g; H=+76.0 kJ

Which one of the following statements is correct?

EASY
Chemistry
IMPORTANT
The correct relationship for a gaseous reaction is
EASY
Chemistry
IMPORTANT
One gram atom of graphite and one gram atom of diamond were, separately burnt to carbon dioxide. The amount of heat liberated were 393.5 kJ and 395.4 kJ, respectively. It follows that,
EASY
Chemistry
IMPORTANT
In which one of the following cases, the heat of neutralization is minimum?
EASY
Chemistry
IMPORTANT
Which of the following statements is true?
EASY
Chemistry
IMPORTANT
The heat of combustion of carbon is -394 kJ mol-1. The magnitude of heat evolved in the combustion of 6.023×1022 atoms of carbon is:
EASY
Chemistry
IMPORTANT

If, CH3COOH+OH-CH3COO-+H2O+Q1 and H++OH-H2O+Q2, then enthalpy change of the following reaction, CH3COOH CH3COO-+H+ is equal to?

EASY
Chemistry
IMPORTANT
Consider the reaction, N2+3H22NH3, carried out at a constant temperature and pressure. If ΔH and ΔU are the enthalpy and internal energy changes for the reaction, which of the following expressions is true?