AIPMT 2002 | Thermodynamics Question 72 | Chemistry

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AIPMT 2002

MCQ (Single Correct Answer)

-1

Which reaction is not feasible?

2KI + Br₂ $$ \to $$ 2KBr + I₂

2KBr + I₂ $$ \to $$ 2KI + Br₂

2KBr + Cl₂ $$ \to $$ 2KCl + Br₂

2H₂O + 2F₂ $$ \to $$ 4HF + O₂

AIPMT 2001

MCQ (Single Correct Answer)

-1

Enthalpy of CH₄ + $${1 \over 2}$$ O₂ $$ \to $$ CH₃OH is negative. If enthalpy of combustion of CH₄ and CH₃OH are x and y respectively. Then which relation is correct?

x > y

x < y

x = y

x³ y

AIPMT 2001

MCQ (Single Correct Answer)

-1

Change in enthalpy for reaction,

2H₂O_2(l) $$ \to $$ 2H₂O_(l) + O_2(g)

if heat of formation of H₂O_2(l) and H₂O_(l) are $$-$$188 and - 286 kJ/mol respectively, is

$$-$$ 196 kJ/mol

+ 196 kJ/mol

+948 kJ/mol

$$-$$ 948 kJ/mol

AIPMT 2001

MCQ (Single Correct Answer)

-1

When 1 mol of gas is heated at constant volume temperature is raised from 298 to 308 K. Heat supplied to the gas is 500 J. Then which statement is correct ?

q = w = 500 J, $$\Delta $$E = 0

q = $$\Delta $$E = 500 J, w = 0

q = w = 500 J, $$\Delta $$E = 0

$$\Delta $$E = 0, q = w = $$-$$ 500 J

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