One mole of methane undergoes complete combustion in a stoichiometric amount of air. The reaction proceeds as CH₄ + 2O₂ → CO₂ + 2H₂O. Both the reactants and products are in gas phase. ΔH°298 = - 730 kJ/mole of methane. If the average specific heat of all the gases/vapour is 40 J/mole.K, the maximum temperature rise of the exhaust gases in °C would be approximately equal to

Stoichiometry
One mole of methane undergoes complete combustion in a stoichiometric amount of air. The reaction proceeds as CH₄ + 2O₂ → CO₂ + 2H₂O. Both the reactants and products are in gas phase. ΔH°298 = - 730 kJ/mole of methane. If the average specific heat of all the gases/vapour is 40 J/mole.K, the maximum temperature rise of the exhaust gases in °C would be approximately equal to

1225

1525

1735

1335

1225

1525

1735

1335

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Stoichiometry
A gas at 0°C was subjected to constant pressure cooling until its volume became half the original volume. The temperature of the gas at this stage will be

0°K

-136.5°K

0°C

-136.5°C

0°K

-136.5°K

0°C

-136.5°C

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Stoichiometry
Which of the following has the smallest least effect on the solubility of a solute into the solvent?

Nature of the solvent

Temperature

Nature of the solute

Pressure

Nature of the solvent

Temperature

Nature of the solute

Pressure

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Stoichiometry
The net heat evolved or absorbed in a chemical process, i.e. total change in the enthalpy of the system is independent of the

State of aggregation & the state of combination at the beginning & the end of the reaction

Number of intermediate chemical reactions involved

Temperature & pressure

None of these

State of aggregation & the state of combination at the beginning & the end of the reaction

Number of intermediate chemical reactions involved

Temperature & pressure

None of these

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Stoichiometry
In which of the following case of mixing of a strong acid with strong base (each of 1N concentration), temperature increase will be the highest?

15 c.c acid and 35 c.c base

30 c.c acid and 30 c.c base

20 c.c acid and 25 c.c base

35 c.c acid and 15 c.c base

15 c.c acid and 35 c.c base

30 c.c acid and 30 c.c base

20 c.c acid and 25 c.c base

35 c.c acid and 15 c.c base

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Stoichiometry
Roult's law is obeyed by a __________ solution.

Normal

Saturated

None of these

Molar

Normal

Saturated

None of these

Molar

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Stoichiometry

Stoichiometry A gas at 0°C was subjected to constant pressure cooling until its volume became half the original volume. The temperature of the gas at this stage will be

Stoichiometry Which of the following has the smallest least effect on the solubility of a solute into the solvent?

Stoichiometry The net heat evolved or absorbed in a chemical process, i.e. total change in the enthalpy of the system is independent of the

Stoichiometry In which of the following case of mixing of a strong acid with strong base (each of 1N concentration), temperature increase will be the highest?

Stoichiometry Roult's law is obeyed by a __________ solution.

Stoichiometry
A gas at 0°C was subjected to constant pressure cooling until its volume became half the original volume. The temperature of the gas at this stage will be

Stoichiometry
Which of the following has the smallest least effect on the solubility of a solute into the solvent?

Stoichiometry
The net heat evolved or absorbed in a chemical process, i.e. total change in the enthalpy of the system is independent of the

Stoichiometry
In which of the following case of mixing of a strong acid with strong base (each of 1N concentration), temperature increase will be the highest?

Stoichiometry
Roult's law is obeyed by a __________ solution.